Only nitpics are... that the style of the banners clashes slightly with the comic book theme (But that's just personal opinion, and it doesn't clash a lot).... And that the pages have a huge amount of stylesheets to call - Is that just a hang up of using drupal?
Why out of interest didn't you go for the comic book illustrative look n the banners?
I'm not keen. I really like your actual work, when you finally get to it, and I think the comic stuff just gets in the way of showing it off. You've got some really classy work and all the bells and whistles seem to kind of cheapen it.
I love the artistic skill that has gone into this site, I'm an art fan myself so this really impresses me, not just that but the design and layout of the site itself is brilliant, the navigation is very nice, colours are vibrant and beautiful if I may say so.
You should be very proud of the site
Get a lot of SEO done if you want more people to see it and remember it.