They are pretty cool, but are they seriously website layouts? I have to be honest, they feel more like the covers to old arcade machines than any kind of web design. They seem very 1990's. And they always seem to be just in boxes, have you ever tried do so something a bit more intricate and full width? Or even a solid background image. And grids never hurt anyone:
Design By Grid | Home
You should check out:
CSS Beauty | CSS Design, News, Jobs, Community, Web Standards
CSS GALLERY - Web Gallery & Web Design Resources, Tutorials, Online Community, CSS, jQuery, Mootools, Photoshop, Illustrator, and more.
They have some great examples of really solid design.
You should also check out this site:
Photoshop Tutorials - Psdtuts+
Brush up on some of the extras in photoshop. Your designs are pretty solid, but I think they really lack polish and refinement.