I love how clean it is! Great use of white space.

The only place I think it really fails is typographic hierarchy. I feel like you could use font-sizing and color better. For example, the font treatment for the primary nav is pretty much the same as the "Last updated" text.

Other than that, nice!

I like the design a lot and really dig your portfolio! I have to say, though: For people using screenreaders or simply using their keyboard to tab around, your site isn't usable. If you're going to list HTML and CSS as a skill, definitely consider adding :focus states and titles to your links.