Since the level overall is really rather good, I'll nitpick the small things
The swamp tiling should be cornered off more so it fits in a bit better. The shadows come in from too many directions to be natural. The stream in the bottom right is... off? Just irks me a bit, I think it's too straight. In general, the level looks a bit too bright, since all of those lights are on x.x
Kay, and now for what I really think x.x Awesome job. Excellent detailing, rather good use of lighting, nice paths, good work overall
