02-11-2010, 02:14 PM
Try to give the trees some texture, not just a gradient. Also, make them look more like trees, not just cylinders that are coming from the ground. Make them more irregular, and slope towards the bottom a bit more. Give them some more branches and such. Make the leaves not just a rectangular area on top of the trees. The key is making it look more irregular, like nature. Hope this helps.