I don't like it much... The gohan pic is first, to small (the rest of the sig is plain), Its also cut in his stomach, I know its for to put Danny there but it kinda ruins it... gives it a sorta newbie look.
Also you shouldn't of blended the gohan pic, it makes it look pixally(Yes I know its because of the background, which is Cross Hatched), and thats assuming the original pic wasn't pixally.
The Lightning adds a nice effect, I must admit that, but you can make it better by adding more tuff to the sig, currently it is VERY plain... Sorry