More Constructive Criticism
What needs the most improvement IMHO is the wierd sudden deaths. I think the whiplash damage should be reduced, maybe even removed. It doesn't seem like a realistic hazard, just an annoyance. Another is going off the screen (or similarly, losing the egg sack off the screen). I can't think of any good reason this should kill you, why not just have an invisible wall? Obviously this doesn't apply to the bottom edge on the chasm level.
I would also like to see either (or both) of these changes made to the handling of webing: 1) Feet holding webing don't grab walls automatically. 2) If you hold Space when clicking a foot holding web, it keeps holding it. The reason I suggest these is because several times, I would be holding a web, and it automatically grabed a wall with that foot. Then there was no way to release the wall, but not the web.
I also found the system for attaching web a little unintutive, but I'm not sure what would be better. Maybe a seperate button. Finally it would be really cool if you cold attach to webs together.