Nah, man. I don't reckon it's your best. I've seen much better stuff from you. It's still nice. One suggestion, tone down the light bit on his shoulder.
Def not mate. Lighting seems forced and colors need work. And your bg is very plain and black which makes the tag sorta dull to look at and consequently makes the blending of the render meh.
If thats your best the others must suck pretty goddamn hard.. C4d placement is terrible and the so is the flow
You need to use a diff render. The same one is in your current and using it in such a repetitive way makes it very trite, very fast. Cheap Indian is 100% correct about there being a black bg. Thats about all I can add plus whatever they said.