i've lost count, but it's probably like two to three weeks to do this. i really don't feel any need to rush my art since i don't do it professionally. i use adobe flash with a wacom pen tablet for the line art. i do it the usual way, i rough out the characters and the layouts first, then do the finishes/details. it's a vector software, so the lines are cleaner than if i did it in photoshop.