The sig isnt bad, not a bad job with the splatter effect. V1 is deff better than V2, I say never mix the main psd your focal point with the sig, its good to try an blend it in to make it look like it belongs but never fade it in. The main psd is a lil blurry but i just dislike the yellow outer glow. Text should be a darker purple.
Overall descent sig ur getting better keep trying new styles. 6.5 for V1, 5.5 for V2
Thrid is the best out of all, although i dont like the fact the clipping mask is only of the psd an not of a Apply image layer of the flatten version of the sig but when u learn that way ull see it looks better that way. 7.5 V3