yeah that's really bad. I don't even know where to begin.
The colors are horrible. You have red, green, blue, yellow, purple, pink... why too many colors. And the render is in black and white. The c4d renders you used look like they were just pasted into the picture, and the one on top of the man ends up becoming the main focal point rather than the man.
The background is nice, you did a good job with that, although it could use maybe a slight ripple distortion? maybe...
Blend Blend Blend Blend!!!
But I like it cause it's Kendrick.
Then take the techniques you used in it, and utilize them in the kendrick sig.