Why...why did you use Jungle Rollerbrawl as your song choice???? This level was pretty good for the most part, but very few people, if anyone, will want to play it once they figure out what your song choice is. I assume you've made changes since PROX's review since the level has a midpoint, but why didn't you change your song choice? I dare you to come back to this level in a year or so and not be really annoyed by this song.
The rest of the level is pretty good, even though there's cutoff in a few places:
Also, at the top-left of Section 3, the NPCs are placed in such a way so that by the time the player jumps toward that platform, the enemies will be too close to the edge, and the player will have to retreat and wait for them to turn around.
Anyway, other than those minor errors and your terrible, terrible song choice, this was pretty good (or maybe your song choice is just so terrible, it makes the level seem pretty good by comparison--was that your plan all along??). I'd say this deserves a 4.5/10.