-This is not his first map :) Though IIRC his first map were pretty good for first one.Forboding Angel wrote: For a first map you did a really good job.
What it needs is, more color variation, more height variation, and probably better usage of features. For a good contrast, you might try using sirartturi's birch trees.
-The trees look really big. You didn't resize them in upspring? If not, you could try making them smaller? Are you sure you are not using the biggest tree of the set?
-You could try messing up with the unittexture files and change to color or contrast of the texture of the trees. In that way you can change the look of the trees and so way to make them fit for your map... Currently they definitely blend in too good.