The white brushing and such kills it...especially the large white splatter...totally pulls the eye away from the focal. Everything else seems ace...well done.
I love the big canvas, I just agree with what Shrouded said and that splatter totally kills the sig. also, why do you never respond on msn?
As the other(s) have said, those white lines kind of destroy it. With a C. Mask it'll look great I think..