Im all about validating my sites.. but aside from that...
On your navigation menu, I know you were trying to keep the colours consistent and use the dark blue for the background colour, I think its too dark, as Ken mentioned.
The hover on the links for the menus on each page are quite subtle..
The title 'My Work' blends into the navigation menu too much, is that title even necessary?
You have links on the bottom of your pages (Digital Portfolio for example: IDM:Summer 04 / IDM 1:Fall 05 / Index) They link to directories, what are those for?
The Pre-College: Summer 2004 doesnt have the main image on its page.
'The Studio: Fall 05 - Form' (Architecutral Portfolio), there is an image caption which stretches across the entire width of the container, I would align it with the edges of the image, even add some spacing between multiple images, and at the end of the final image on that page.
The tilte 'Studio: Fall 05 - Form' is the same size as all the other text on the page, maybe increase its size, or make it bold, just so it doesnt blend in with the other text.
The 'Music' page, I would add some padding on either side of the text, so it doesnt go to the outer edges.
Just some minor suggestions. Great job!!!