Ok, look at my attachment.
Your trees are tiled are wrong, with the green spots there.
So are your cliffs to the water, I didn't cirle all of them because of that.
These are just the obvious mistakes that pop out at me....
And I dislike your windows on the trees, if you really really want to do that then I'd make a png for them.
Also, the circled one with the yellow dot.. I think you used that combination too much throughout the level. I like to see it mixed up more.
Hopefully you can fix this up and other stuff before you really get into Gaia, it's a really promising server that just needs better levels. Speaking of that Amon never sent me the stuff...
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Edit: Eek, I must of hit something else, the picture is darker.. you can still make everything out though.