It's a great WIP. Just a couple of things to touch up on.
- The hair still has white in it. Not sure if that was the background from the original image or whatever.
- Text should blend a bit more. (Stated multiple times above as well.)
- The flares on the left and right of Kid Cudi just look a bit misplaced. I understand what effect you are trying to create but it just seems to be off in my opinion. Mess around with the blending options a bit more.
The final image should look great. Good luck with Cudi the Kid.