Nam, after I said I hadn't seen your art, I happened to notice some of it on the site... it's awesome. The wall murals are fantastic... those are really becoming "in" again, at least where I live. Especially for children's rooms, doctor's offices, etc. And in my city there are many outdoor murals on buildings, park benches, school fences, etc, to deter vandalism. I think you could get some of that market... just have to figure out how to advertise yourself... which I don't know much about. But I do know that your work is really great, so you should definitely have confidence!