How can I get more visits for my art blogs?

1. You need to start with keyword research. Which terms are being searched for that apply to your blogs? Then optimize for them.
2. sales is communication
Also, is that art you created and are trying to sell? I couldn't tell from a scan of the site. Which means if it is, part of the reason you aren't getting . I'd start with changing your banner to have a gallery name, address and such. This will give your customers more of a gallery feel when they are at your site.

3. Don't put the full blog post on the front page.
Use excerpts and entice viewers to go a page further in to get the whole story. Also, limit your front page to the most recent 5 or 10 posts and have your blog archive links higher up on the sidebar for those looking for older posts. This will let people scan your site, find the things that interest them quicker and should improve your click flow.

4. More on the blog archive: It would help if this was sorted by category instead of date published.
Let your viewers feel your perspective as the artist in regards to each piece and that should help establish a better connection. You could even switch it up a bit and do a podcast narrating a couple of the pieces you are most proud of.

5. Don't be afraid to show some personality up front. Don't make them have to click and expend effort before they think you are interesting, or chances are they wont.

6. Find forums and other blogs like yours and join the communities. This will help send people who you know are interested in your stuff your way. Hope this helps mate, keep in mind