CapsuleCorp
This shot is mostly just to show the progress on Luffy's shirt. The rest of the costume is very basic and I did no makeup, I just wanted a shot of the shirt. In my backyard.
The shirt is bias-cut, so that it would drape along the hem and sleeves the way it does in the art. I treated the art as stylization, so I didn't want it to have actual fluted ruffles sticking out.