I have recently played your level pack, and I think it's coming along fine. However I do notice some major problems with some of the levels, so I will do some judging as would be done in the contests.
For now, I will just do the multiplayer maps.
CTF:
Spring Passage: Same as my contest rating
I thought maybe you would have put some change to that, but you didn't, so my score of 5/10 remains the same.
Match:
Metal Base: 4/10
Okay, this is too big, especially for homing bombs. Homing rings have a much better use on a smaller stage. If you can just scale it down to about one or two thirds, that alone will improve the stage. Oh, and make sure to put in the color map for your water.
Tropical Palace: 5/10
Same as Metal Base, except it uses auto homing rings, instead. Also, there are two rooms, so I can see some potential with this, but again you need to scale it down, although in this case, you really should make it less tall.
EDIT: I finally figured out that you put in a race map, so it's time for some judging of that level...
ANOTHER EDIT: Looks like you took the race level out, so I no longer need to judge it.
EDIT: Okay, I'll go ahead and do your single player pack now, starting with Green Peak...
Green Peak, Act 1: 7/10
I really liked this, especially since I figured out why there is a gargoyle statue in that hidden room. *hint hint* BTW, I like the monitor sprites you have for the pack. I was able to do some high bounces on the Skim and Red Crawlas at the end; that was fun.
EDIT: For some reason, when you break the breakable wall hiding the ring monitor at the beginning it lags for a little bit. What's going on?
Green Peak, Act 2: 6/10
Well, you fixed the platform pits, so I give you a higher score for that. You did not fix the part at the end with WAY too many enemies, though, and when you have invincibility at that point, it's kinda cheap. I did like how I found another of those...things, but I haven't found the emerald yet. If I don't find it at all, that'll be a problem.
EDIT: Found the emerald, and it's in a great spot, so you get an extra point for that. Plus it was somewhat challenging to get to it.
Green Peak, Act 3: 6/10
I'm okay now with the bottomless pit idea. I still like my HOM quicksand idea, though. *shot*
EDIT 2: Now for Mineral Valley...
Mineral Valley, Act 1: 6/10
Yeah, this is just plain average. At some point I got a little confused and didn't know I had to go on the red spring, plus it's annoying when you bounce into the bottom of the platform. Please be considerate of our characters and keep them from having a concussion. >_<
3/30/08: The red spring issue isn't fixed, so I keep my score as is.
4/8/08: I found another awesome thing, and there was more to explore than I thought, so I give you one extra point for that.
Mineral Valley, Act 2: 8/10
This was a lot better than the act before it. It was cool that I found the emerald; I actually stumbled into the secret part by accident the first time I found it. I wonder if RedXVI moved to the house you put in the level. Hmmmmmmm........... Anyway, good object placement and hidden stuff.
I think you should know that at the beginning, there's a panel that when you look at it at a particular angle, it changes from wall to sky. XD Ask me if you need a screenshot of where it is so that you can fix it. It's still there in Beta 4, so apparently you haven't found it yet.
Mineral Valley, Act 3: 6/10
This was a better boss level than the first one. It's pretty big for an Egg Slimer boss level, but then again...
EDIT 3: Okay, it's Magma Cavern time!
Magma Cavern, Act 1: 6/10
I have to agree with Mystic on this; bottomless lava pits seem a little cheap. EDIT: Good, you fixed some of it. The turrets are fine, but the fact that some of them are on corners makes them difficult to destroy.
Magma Cavern, Act 2: 7/10
Same as last time, but WHY ARE THERE DETONS?!? Also, for me, it seems like the falling lava at the beginning falls too fast. Again, you have the lava pit problem, and I'm still looking for the emerald here.
EDIT: Found the emerald! Cle~ver! And the Deton idea is cool as long as you have the spikes there to hold them.
Magma Cavern, Act 3: 7/10
I like the fact that it takes some effort to get to the boss here. My problem with this is the falling lava in the center of the stage. I also think that it's kinda cheap when the spike balls around Eggman can knock you into a lava pit. Other than that, it's a good level.
EDIT 4: Now to judge Icy City, AKA Salt Lake City. XD
Icy City, Act 1: 8/10
Can't think of anything wrong with it, maybe the bottomless pit below the checkpoint on the building? I was a little surprised with the bobbing ice; it's so... so... realistic! ^_^
Icy City, Act 2: 9/10
SonicMaster told me about some cramped passages or platforms or something like that. I didn't really see that here, so it could be that he was wrong, it could be that you fixed whatever it was, or my opinion here isn't too credible since I played Tails. =P The only *cramped* passages I could see are the ones leading to the emerald, and that's not really all that much of a problem. I like how you had switch-activated doors to go with the breakable walls, also.
Icy City, Act 3: 6/10
The problems with a frozen metropolis had to come somewhere! It's pretty much the fact that the platforms in the center are too small, so that should be something easy to fix.
EDIT 5: Guess what? Metal Mechanism finally gets scored!
Metal Mechanism, Act 1: 6/10
Well, let's see here. You changed the machine-gun turret next to the blue switch to a pop-up turret. That made it better. The fans to blow you to the next platform weren't needed; I can jump to them, you know! Not much else was changed... I think it's best if I keep this to the same score I gave it at the contest.
Metal Mechanism, Act 2: 7/10
I like the room with the alarms; it's so realistic. I even found the emerald on the first try. It's pretty long, but I like the layout of this. Yay for colorful lasers! My problem is just with the placement of the pop-up turrets. Again, when you try to kill them, you take too big of a risk. Just try toning that down a bit.
Metal Mechanism, Act 3: 4/10
Right when you start the boss battle, there is a camera issue when you move to the left. Also, there are separations between the pillars and the ring platform that you can fall into...that's cheap. Also, I think that it's easy to get hit by Eggman and then fall into the bottomless slime pits. There's just not enough room to work with.
Chaos Twilight Overall: 6.28/10
Yay, it's another improvement! I would do something about those fours and fives... they are mainly the multiplayer levels, so either fix them or just take them out altogether. I won't judge your "secret level" for fear of a spoiler, but I will say one thing about it...it looks familiar...
EDIT(3/30/08): I've got Beta 4 now, so I'll change the scores according to the improvements made when I have a chance to play it.