Seems more appropriated.
Not a free tool though.
I guess that for getting initiated, Gale Graphics will do.
Once the user knows a little bit more about what he's doing and how to do it, then he could look forward for such a professional tool.
Nevertheless I wouldn't advise it to a fully beginner. (as you may not know if he'll stick to pixel art or not, so it isn't really useful to throw such money in a tool that may end up sitting on your computer, unexploited)