I agree, it's just so bare without more effects/blending. Try to get something more in there. It has veeery little depth, if any at all. I like the overall concept here, it's a decent looking signature as is. But as I said, it's just so empty.
Compo could use some help. The left side of the sig is totally empty aside form the little design on the border.
I agree with this 100% that spot needs a lil bit more i guess that tower top seems like it has nothing to do with it and its just there to take up empty space as kind of a after thought?