Look's like a stock image with a few layered c4d's. The c4d's aren't blending with anything what's so ever. Actually the appear quite obvious with no flow. No typography work. In the end, looking at your signatures I think you can do a much better job. Working on blending those c4ds so they play into background better and flow with each other as well.
Not a fan of the background. The c4d effects could be don't a little better. But i really like the shadow.
SiteWhite i thinks thats a stock(meaning it just picture not rendered or anything). As said before the Fracticals look spamish and random placed(although some street stock set on lighten then erased by focal the would look cool.
The stock isn't bad choice, just work on new background concept, and in the end lay colored filters to kinda blend whole signature with the background.
and the line c4d thats going over top of his neck should be there IMO. Work on blending it all in a bit more and keep it up man!