it is, although not always, some artists do commission work of characters they might not be a fan of, hehheh. not sure if that's considered "fan" art anymore, though. anyway, Serenity Rose is great but i just haven't felt like doing any fanart of it, that's all. but when Aaron asked me if i wanted to do a pin-up for the last book it was kind of a motivational thing, and if he asks me again i'll be more than happy to do another one. otherwise i got too many other things to draw!
Ah, like shadow eyes and others I under stand.
yeah, i'm doing 2 comics right now, it's rough! usually when i get time to do some fanart i want to draw something i don't get to draw otherwise, and Sera and her friends are regular-looking punky girls that are similar to the characters in my own comics. when i get time to draw fanart i want to draw monsters and aliens and stuff! 
Cool just like other famous comic book authors. U really are awesome. Quick are the one the same guy who does the art in Hach/Slash?
not sure what you're asking, am i the same guy who does art in Hack/Slash? not sure i understand your wording, is that a typo? 
I'm just saying are u the same guy who does the art, because it really looks like ur art styl when u look at it.
ah. well, Hack/Slash has a bunch of different artists, there's no one artist who draws it, but i've done about 15 interior pages for it over the years, a couple covers, and a bunch of sketch cards (which you can see in my gallery here).
Cool just wanted to know because that got me really confused. Big time.