This could benefit from cleaning. It is rather washed and mushy when it comes to features and the colors do not come off as complimenting each other.
I'd look into some tutorials and study how shadows and light sources work in wc3. Awaiting an update.
I edited the texture, adjusting highlights on some areas to increase perception of color. I understand that it still seems somewhat monochromatic atm, any suggestions as to where i can add/edit colours?