Before 2003 (the year I got JJ2) I drew stuff for other games (not rarely my own thought-up games), but then I got pretty much fascinated with JJ2 but I couldn't use JCS back then and drew levels for JJ2. (also the drawings sucked) I dunno where most of the stuff I drew is now. Sometimes I still draw stuff for other games on paper. =D (my stuff doesn't suck as much as in the past now)

About drawings of JJ2, I didn't actually find much drawings of levels, but I found lots of planet and enemy designs. ;P