On mobile the "x" at the end of Gervaix is not showing (i'm on a nexus 5) ;
On a 13" macbook when I click on the "about" button it looks like nothing happened (the content is loaded below the fold). Maybe it could be a good idea to scroll the about section into view with JS ;
Allow Gzip compression to make your website load even faster.
I like your style, you'll become a great designer!
Great work! Here are my 2 cents:
I like your style, you'll become a great designer!