My first impression is I wanted the nine pictures on the front page to click somewhere and they didn't. They look a lot like UI elements, and I assumed they would lead to different pages.
My basic, basic setup for building quick and dirty websites (before I started learning about frameworks)was to use Twig for templates and Skeleton for html/css. Having something like that (where your 'pages' would be child templates which extend the 'main' template containing everything around the container) makes style consistency and the workload of changing things much easier.
I'd recommend repo.js (http://darcyclarke.me/dev/repojs/) to embed your github account into your site to let people browse your work -- that with a cv page would give people a better organized idea of what you do and more importantly what you're offering.
I can't comment on the blog? It doesn't seem like a blog without commenting.
Also, having underlining show up on the link css on hover shifts the elements around and that's kind of annoying.
