My mom has a degree in art, and she showed me a number of things she made using MS Paint. Simply because she didn't know of any other paint programs, or didn't have access to them. She drew a color picture of my sister, it looked pretty damn good too.
To a seasoned artist, all it takes is familiarization with the tools to visualize and bring what is in their mind to the canvas, whatever that canvas may be. Needless to say, I had to show my mom some other paint programs, like GIMP
. She draws cool pictures too. I don't think I have any links to them online though.