really good yo butttttt ummm maybe look at some tuts 4 focal n stuff
lighting get rid of it looks like the blendings good
umm your text needs to go with the flow of the sig so like it need to blend with the sig and your bg try not adding that font and dont add effects to it maybe some clip masking
but work on those and your sig will look good
ohh and lighting look at some tuts 4 that