I just don't know with this one; really need some C&C... I know there's a lot missing. I just need something to get me started with it.
Maybe raise the render a little higher, to avoid the floating head syndrome. Make those c4dz flow with him. Like put those red/black c4d effect behind him but a little to his right signaling some flow. Also, I would like to see some good BG stock there without abused blur. Blending still needs a tiny bit of work and adjustments IMO. You got a rocky start, but hopefully, you'll get it out in the end Kiu-
The render placement in this is rather... 'erm, dumb, imo. Overall, the tag looks to be a little random. Try not to have such a variety in the tag. Maybe since you're having a little trouble with tags, you can try to perfect one specific style. And from there, start messing around with different styles