C4D's look grainy, there's no depth, and the stock is so hard to make out that it looks like a blob. Everything is over contrasted, and the background is really boring.
Almost looks like you smudged on a high strength, lol. Doesn't look so bad, imo. Could use more depth and a light source for sure, though. One of the reasons I like this tag is because the little disks look like Predator is kind of being "blown away," in the form of the c4d. Cool concept, could be executed better.