How to Draw the Joker in Cape and Cowl

I've been noodling around with digital painting lately. This is something I'd started sometime in the Spring and only returned to it in the last week or so. I saw a piece by my hero Barry Windsor-Smith in which the Joker is wearing Batman's ill-fitting cape and cowl, while joker playing cards rain down on him. For the life of me, I can't remember where I saw it- online somewhere. I laid everything out quickly, then hit a few snags so I abandoned it for a while. Coming back after a hiatus I think I worked through some of my problems.