recolor the greenish c4d by the focal's head. I personally don't like the softbrush lighting. It makes it look sorta fake. Sorta messy but nice job. The colors are quite appealing with the exception of that green c4d
You have nice c4d use, but you could probably improve on the placement. I like the brushing. As Pulse said, work on the lighting.
only thing i see is colors look a bit washed outish, and the lighting needs work other than that, it really is nice :]