Personally not a fan of the c/p render 5 times and call it a bg method, but you seem to use that method a lot. The render itself is cool /shrug. not much to cnc here, work on different styles that would require you to think about color usage and blending, maybe make a sig that isn't monotone, then there would be something to cnc.
We have plenty of tuts on the site if you do feel like expanding your process a bit, I would recommend it highly. Using multiple styles in practice will help you understand the basics and give you a more creative outlook which would eventually lead you to finding your own style.
Anywho, if you enjoy it then awesome, keep it up, still looks better than 50% of the request section :/