I think that it's a great start on a creation. You could make it more custom, instead of just switching the body of a shadow trooper. Also try to color a bit better with sharpie (I recommend using the fine tip ones). Sorry but just switching the body on a regular clone doesn't do the shadow trooper justice. To make it more custom, try adding a jetpack, custom blaster, custom paint job etc. Just try to make it a complete MOC.