Simple and basic - very nice. If you do upload more art, I strongly suggest putting it in seperate folders (sketches, digital, and so on). It seems pretty obvious but trust me, my Dad who barely knows anything about websites was able to navigate and find stuff with ease on my site. But I like what you got.
It should also go without saying, but defo pay for domain. You can get really cheap deals at sites like godaddy to buy your website name, but you may have to pay for domain usage on this site first, at least I did.