Alright, the map is quite good with respect to creeps, items and layouts, but there are many technical errors which happen to anyone who has just not that much experience with the editor.
It's best explained in this screenshot (the examples on this screenshot also appear on various other locations of the map):

Yellow: Small gaps where (in theory at least) small units like footmen can pass through while bigger units and heroes cant. These can lead confusing army movement if small units take an unexpected shortcut. (It's not relevant in these exact places on th screenshot, but there are others).
Red: Buggy ramps. These tiles are unpathable, units will walk around them. This happens typcially if you change ramps too often, inparticular if they are not streight or lead down to shallow water.
Black: Gaps between trees. Wisps can use these to to hide from vision and be safe from harass, for example (there is other potential abuse too). To avoid this, place at most 7 trees at once with the size 2 circular tool. So trees will be placed as in the white circle, and do this all over the map, leaving no gaps.
Blue: A wisp can enter this tree from the direction of the arrow, but melee units cannot attack it from the direction of the arrow. This does not happen if you use the 7-tree-method to create forests.
While this sounds like a lot, you dont have to fix all of it, unless you aspire to make a map that is of the same quality as ladder maps.
Some other questions:
-Some itemdrops dont have a class (charged, permanent, powerup,...) defined. Is this intentional?
-Creeps are facing weird directions. Make them turn by selecting them, holding CTRL and clicking towards the direction they are supposed to face.
-The unbuildable terrain makes AoW-Creeping the lab in the west slightly harder than in the west.
-Natural expansions on highground might be too easy to defend (edit: I missed the 7500 gold part. It's ok then).
-There's a creecamp north of the shop which is not on camp stance (i.e. "blue")?
Good stuff: Generally good layout, creeps and itemdrops.
Conclusion: Fix at least the buggy ramps, and as many of the yellow small gaps as possible. Consider if you want to make some further changes to the other things I mentioned. Until then, map set to
Awaiting Update.