My guy, I can certainly help you, as long as you don't want realism on that sleeve, would this be a long term project? I don't have illustration stuff here, but I can show you some sketches so you can see if my style fits the theme for your sleeve, it is kind of mangaesque (if that's a thing) but I lean more towards the dark surrealism side of things, super interesting concept/project, that's for sure.
Pricing and delivery needs to be discussed, anyway, hope to hear from you.