if you want to do it just do it, it gives the drawings something special as well as you make a couple of bucks. if you don't want to be overloaded with commisions you can always say: only ten (or even more or less depends on what you want) every month or week or in like a couple weeks. but i think this would be fun and challanging as well for you. anyway if you want to do it just go for it and i hope some special and nice drawings come out of it ^^ anyway good luck.
tero009
You should go for it and sell your work on here and other sites so you gain some attention towards you and your work!