This is a pretty simple one to answer. My artistic skillz are limited to stickmen and sheep. Luckily, I have some very artistic friends who have drawn pictures of my characters for me. chaostheory drew me a gorgeous pencil picture of Scarlett and Ash many years ago, which I still keep framed in my bedroom. She's also drawn Christian and Isaac and Blade's theoretical son.
dwg was kind enough to draw me an awesome picture of Ayla and Shannon for my birthday this year (as well as write me a cool little fanfic to go with it, and I'm sure she won't mind me posting said picture here, so:
( Questions under the cut )