The "email" link is right over the edge of the div for me on Firefox, and your name shows up on the edge of the div in Safari.
Are these all contest submissions?
See the little underscore that shows up between image links? Need to fix that.
Don't put "under construction". It's pretty much widely accepted that web sites are always under construction or going through some sort of changes. Don't put the link or page up until you are ready for it to be seen.
Also, use firebug - getting to grips with this awesome little tool was very helpful for me when I started coding.
First thing that struck me was the amount of noise in your gradients. It's good that you're using dithering to reduce banding in your gradients, but you've dialled them up too much. Its not too bad in the blue part, where it could pass as a bit of texture, but its particularly noticeable in the grey portion, where it starts to interfere with the text.
You say you have many happy customers, but why aren't they in your folio? All I see are contest entries - did you win the work based on those entries?
Overall, the site feels unfinished an a little student-y. Nothing wrong with that, but if you're applying for a fulltime position I would bolster your portfolio with more real-world clients first.
You should allow access to the cumulative results for those who've completed the survey. If someone takes the time out to do a lengthy survey with a lot of thought involved, there should be some pay off...