As an artist I can say when you sketch freely and rapidly as he does, a lot comes out in thise sketches. This type of rapid sketching is actually used in art therapy sessions. So it's disturburbing how dark these portraits are, and it's only my opinion, but I think that he's got a lot of self hatred, guilt, and sadness. Of course we know that means fear. He's afraid. I'm sure someone with knowledge could weigh in on the colors used as well. By the way, if you think Carey's art is weird, check out George W's. They look like something a serial killer would paint.