Ok, so I made this right now for someone. I think it turned out pretty good. Input and suggestions mucho appreciated! Stocks:
As far as putting two stocks together, it is pretty good. However, the basics of a regular flashy signature seem to be lacking. Not saying anything is wrong with it, just that I don't see enough in it. Except the border. Get rid of it.
I personally like the border, not too flashy, not too plain. The is really good too, it's simple yet excellently executed. You really made the stocks go together perfectly. I'd say smudge, or blur, the C4D a little bit because it kind of takes away from the car. The smoke around the tires could be blurred some, but it it still needs to make the flow of the sig. So I'd say a light motion blur just to add some more movement to the picture.