so this is something i was working on last week but didn't like how it came out so i started over, i kinda dig the effects it matches the render..the background is simply a gradient i used then added a layer applied clouds then a chrome filter and set it to overlay at 30% and the rest are cd4s smudged and erased in parts..enjoy the render i used is below
I like the idea but theres alot of work needed imo. There's no blending what so ever nor is there any sort of lightning . The c4d part is flawless thought, really nice. The background should match the render a bit more. That's my opinion . With those few problems, it still looks fantastic.
I agree with everyone above.. Spend some more time blending the render, c4d and background together and throw some lighting in there too. Could look awesome when its done I think.