Zoomed in thumbnails are not good, and your thumbnails are too small to give a good idea of what we're seeing. Make the thumbnails bigger, and they need to include the whole picture.
Lose the car, or at least do your own texturing for it.
Lose the WiP - if this is your portfolio, don't include unfinished work. People might get the wrong idea about your work ethic.
Make sure you put your name and email address on your images. That way, if someone wonders across it(like doing an image search in google) they can be lazy and already know how to contact you.
Lose the ambient lighting on the models. They're too bright, and contrast will bring out the details.
Center the web page - on a high res screen, it tends towards the left side.
Put your contact information right on the web page. Users are lazy, and you should show them any information that they want right off the bat.
Make sure that the text you add in your images is SEO
kosher. And once you're done with your page, don't forget to submit it into the search engines.
Looks good so far - I love that gun. Fifth Element? [img]/images/graemlins/wink.gif[/img]