Well which is it?
The picture of you needs some padding on the right.
Remove the apostrophe from "logo's".
Is the top of the website supposed to look like this (http://awesomescreenshot.com/08fel512a)? If not, I'm using Chrome if that helps you fix it. If yes, it looks weird.
I think the links in the nav should be reordered, portfolio should be second.
On the portfolio page, the title for the image previews should go on top of the image.
Lastly, it's just not a good website design. The designs in your portfolio look better than your actual portfolio, which is the first thing potential clients will judge you on.
Anywho, that's just what I noticed from a quick browse, could need more adjustments.