on the advice of lbadmus, I decided to try working with renders and layers... this was the result comments please?
Nice! I like how almost perfectly you blended the render on the rest of the elements in your sig, and actually like the brushes you used. Just don't like the fact it's soo sharpened, and doesn't have any text (maybe you should try adding in it ) 8/10 overall!
I really like it! The colors work really well together. The only thing is there's no focal point. You can fix that by adding a light source.