Reviews are coming along nicely, but I warn you that they almost read like instruction manuals of "What I expect you to do on your level pack" right now. In Snowcap Nimbus Zone Act 1 alone, my review suggests to completely remake two sections of the level (one of them rather long) and extensively re-texture just about all of the stage, among other things.
I know this all sounds very demanding (and almost hypocritical, it's your level pack after all, not mine), but I try to suggest only things that I believe will improve the levels, and I try not to leave anything out. You've shown with v6.0 that you're not reluctant to totally transform many sections of your levels to improve them, so I'll just assume you'll be fine with my ridiculous demands. It's still up to you what of it you actually want to do.
The thing is, I have the feeling these reviews are complete. If you read a review and do everything I request in it, I will consider the respective stage to be perfect. That fact alone should make you quite proud. Before v6.0 was released, I had a feeling that you had come to your limit in improving these stages and I feared you could hit a point where you have done everything you can to improve the stages but they still don't feel flawless. That changed with v6.0. The things you did convinced me that if you improve these levels at the right spots, each of them can become an awesome stage in its own right.
That's why I do these reviews, because while they are very demanding, they show that it's indeed possible to make this pack quite perfect. I hope you consider as much of these suggestions as you can, but of course, there are things you might disagree with. If so, please tell me that. For example, if I want to see a certain room removed but you want to keep it, please try to explain why. That gives me in turn a better understanding of what your vision for this pack is, and helps me give feedback.
Geez, aren't I demanding? I always feel like I'm taking everything too seriously and putting too much effort into things that are just a hobby when I write ultra-long posts like this one. But hey, it's fun for me, and whoever wants to laugh at me may be free to do so ;)