Have you seen something you like which has already been snapped up? I'm very happy to work to commission (I really could draw all day). Just drop me a line to enquire. Let me know the name of the drawing and the rough size you are considering, and I will prepare a proposal with clear pricing and timelines.
I am also happy to provide complimentary mock-up images of artwork in your home, just email me a pic with some dimensions and I can work my Photoshop magic.