Here is the preliminary sketch. Proton pack included.

Different take on it.

I wasn't really digging the mini ghostbusters, so I concentrated on the colors of puft.

Like the idea, couple of things: work on your half toning, its not really working here, also i assume he's supposed to be skipping in the air but his right leg looks more like a deformity than a bent leg.

whoa creepy, i agree the halftones look weird here, especially on the shadow, would just give him a solid shadow colour. also the legs in general look funny. they look to small for his giant body, and woudlnt he be a bit more worried if he was burning and melting instead of happy?
good work thou

please critique

Well, he is happy because he is making smores.
But, I see what you mean about the shadow halftones. I'm diggin' the fire halftones, so I'm keeping those.