Wow...great looking site. The fonts and large icons really pop. Pop art is meant to pop and you delivered it well. Hard to criticize because the presentation is excellent, in my opinion. If you must find something to pick on, then maybe the fonts for the headlines on all the pages may be too large to fit onto smaller screens, thus customer having to scroll down to read all the info....but again just trying to find something to nit pick. Other than that...Great! Good luck.
I know not everybody is a fan of IE, however most of the general online folk tend to use IE and you are cuttin out a big slice of peeps that could be viewing your site
Dropdown menu of "artwork" contains big text with dropdown menu. I think it should be set as same text size with "artwork" font or dropdown menu contains "character" which is large character of text should be placed at last one in dropping down. Site is looking good and attractive only some of pages are taking some time for loading (obviously because contains so many images).