I am joking man
it is good i like idea
well try this for start
duplicate couple times render and try smudging it in background to create background or do that with brushes but it is always better to do it with colors which are from render.
When you make background original render layer should be on top but it needs some make up for it as well.
Make one more copy and smudge it but just over it dont spread smudge over background ,add put it either overlay or color / linear dodge (i prefer these most)
Also download some cool brushes from deviant and use them like this as well : you make new layer , brush somewhere a bit (where you want cool effect) and change layer to overlay or what ever you like.
As for fonts keep them near focal (render)