A Little Mermaid –Working in Digital

Well,I am once again trying my hand at digital art. I am not sure what to do with this now that I have done it. I might use it as part of a fabric design. Maybe put it up on cafepress or zazzle. But I like it so very much,that I want to display it at conventions. How do I go about doing something like that with a digital image. I know folks are still struggling with the original vs. print thing on digital art. I guess I could do a very limited edition print of it –maybe 10-25. But the original is this file on my computer.