the details in the first one r rly hard to see since the background is really light and so r the details...
and with the second one it looks like its mostly renders and a little bit of effects in the little bit of bg...
That was subtle approach I was taking, sometimes too much is too much, I wanted the render to shine here--and it does.You are mostly right. I played around in Cinema 4D, and made a few messy looking renders; I then converted the renders to brushes, goofed with some lighting effects, etc.ic well i think that's fine with the first one.
and the second still looks fine but the amount of renders kinda downs out the artistic part of the sig