Well... I just use a mechanical pencil on plain printer paper and draw what I want. Then I ink over the lines with a Micron pen and erase the pencil underneath... Then I color my art in photoshop (mainly with the fill bucket lol) and that's about it. xD
Ohhh, okay. c: All my art that's digitally colored, I've drawn completely on the computer, so I was wondering if there was a pen tool in a program I should know about. XD Your lines are just so pretty and thin... they remind me of old books I used to have when I was a kid; I think there was some printing process that made really nice thin lines like that.