I cut away the part of the waterfall so the cave is visable, so just ignore that part.
Probably not my best work, but I still like how the level came out.
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How to start your own project:
1. Annoy everybody on an existing project by submitting or proposing changes that they don't want
2. Formally declare all existing projects to be complete crap
3. Talk at great length about the deficiencies of other projects
4. Get drunk
5. ???
6. Profit