Making good maps is an easy way for someone with little to know art talent like me to make ones adventures look good, and perhaps even publishable (Will send some to fanzines at some point).
I've been steadily learning the ropes with GIMP.
This is a bath house I'm constructing for my current Astonishing Swords and Sorcerers of Hyperborea game. I need to create a good pattern fill for the pools, and probably design some more objects to give the map a more populated feel but the structure is there. I very loosely model it on some historical floor plans;