The base is by far my favourite Black Series figure.

A pretty easy and pleasing custom. Luke's costume changes in Return of the Jedi all use the same jumpsuit with slight additions and changes depending on the location/situation. I wanted to represent the look he had during his infiltration of Jabba's palace. Replaced his gloved hand for a bare one taken from a spare Han. Then I removed the belt and after that I added the tunic. No sewing needed, just cut out the basic template from a suitable material and glued it onto the figure in a way that doesn't impede the articulation.