The Review(****)
-Why it got 4/5 stars-
1. Nice length, quite a bit of fun involved with the level.
2. Minor visual gliches, underwater waterfalls, "mirage" walls.
3: Some wide open spaces, that seem slightly empty.
-What you can do to improve-
Well it's a nice level, try to fix the gliches, if you can, and try to add something to those empty spaces, otherwise a nicely built level.