Needaname wrote: Any tips on how to do that?
When I have seen your sig i thought you were making the background the whole time and you put the render on top of it e.e.
Render is a part of the sig, same like c4ds,filters, test and etc.
Watch out for the light & darkness, take care of the flow (when you look at you render your eyes travel, the road of your eyes traveling is flow. Whoa what a stupid defintion e.e).
When you start the sig think of a possible outcome and try to make that. Don't use effect randomly, have a final picture in your mind. Find good resources too.