Flare957, I just played Lush Meadow twice and I gotta say it's one of the funnest maps I've played in a long time. There are some seriously questionable level design choices that sort of hinder the experience a bit, but over all it's genuinely fun to play and figure out all the multiple ways to get to the ending.
I agree with glaber, I honestly don't think anyone can take GFZ's music seriously anymore. It's not a huge deal but finding a module file that fits with the map and using that instead couldn't hurt. Another change I'd make that doesn't really affect the overall gameplay would be to use different textures. Make your own if you have to, or just pick better vanilla ones. I know "better" is subjective but I seriously think pre-2.2 GFZ rocks and THZ rocks aren't visually appealing at all. Again, it doesn't even matter that much considering that the level plays exceptionally well, but it seriously wouldn't hurt to change things for the better.
As for actual gameplay critiques (the stuff that matters), the one part that stood out to me as kinda BS-y was the underwater section at the very start. You know, the tunnel with the button. The grass that floats up when you step on it is an interesting gimmick, but if I remember correctly it was only used once and players who haven't seen any footage of this map before might actually die from it if they're not careful. Traps like this are okay, but maybe you should indicate that it's gonna kill the player before it actually floats up. Maybe re-texture it to a cracked DSZ texture instead. Anyway, the underwater tunnel itself could use some fixing. If you're Sonic, you have to go PRETTY MUCH all the way to the beginning of the tunnel to leave through the door you opened after you press the button. This just seems tedious. Pressing the button should be the end of it; you shouldn't have to re-traverse the tunnel to leave it. That being said, the number one thing I think should definitely be changed about the tunnel is not having it be a forced path. Once you enter the tunnel, the only way to get out is to press the button. Maybe you could just put a spring at the beginning for players who want to back out? That may be confusing, as some people might think THAT is the way out, but you could put crawlas that face backwards toward the player when they get out of the tunnel to make sure the player knows this isn't the proper way out.
Now, why did I find this level so ridiculously fun? The main thing is that it's open. And I don't mean it has hilariously large sectors or tons of vertical variation, I mean you could play it like six times and always have different experiences. I don't even know how many path splits there are. The path splits have path splits. Different paths lead to the same path split, so there's even different ways to get to a particular path split. I love shit like this. Who would have more fun playing a level that's one linear path than a level that has a boat load of replay value simply because it's not linear? And that's not even all there is to it. Each and every path (that I've found) seems to have the same amount of effort put into it. You didn't phone it in on any important section of the level. The quality is pretty consistent throughout the way, there's just hiccups here and there that are probably just due to creative choices. And, like, there's slopes I guess. The entire level isn't structured around them like some modern srb2 maps are but they ARE used with dignity. You didn't just add slopes for the sake of having them (besides a few decorative touches here and there, but who cares) and you can even sequence break a few areas by spin dashing off the tiniest curves in the ground. At the very beginning, to the right path split, you can spin dash off this small-ass bulge in the grass and get to a few monitors on a ledge. I'm also pretty sure this is the end of an alternate path, which is all the cooler. It adds a lot to any game when the player can pull of stuff like that, and they're given even more alternate ways to beat a map that may not have even been intended by the creator.
Basically this map is fun good job dude