Portfolio layout critique

Check out the full page layout at http://i.imgur.com/6TCpgnx.jpg -- gives context and multiple project examples.

I'm redesigning my portfolio page to support filtering by project type (as I've branched out into print/mobile work) and some case studies/descriptions on the same page as screenshots. Compare to the current at http://mosaic.ws/portfolio.php. Any feedback and critique on the whole page is welcome.