I can barely see the top edge of a menu item named "View LookBook". It appears below "Shop".
I like the simple, clean black & white look.
Your T-shirt photos are large enough that I can actually see most of the designs. Congratulations! (Almost every site uses a small initial image that requires clicking through to get to an image large enough for the design to be clear.) That said, I would crop tighter on the ones with finer details, like the "Life's Short" shirt, as I couldn't read it without clicking through.
Oh, and the girl in the blue shirt is pretty
EDIT: FYI I was browsing using a desktop computer with a 1920 x 1080 display and Opera 12.16.