Seriously don't worry about not being artistic. Drawing a good map (depends on the style of course) is more about procedure ... it's more like doing Soduku or a crossword. It's a question of seeing in your mind's eye what you generally want and then fighting the software....and then playing with all the sliders and buttons that you can see and finding something wonderful and using that (even though it wasn't quite what you wanted in the first place). That's my approach to mapping in a nutshell.