A few quick suggestions here.
1. The design is more important than you think. Fix it(even with a free one) before trying to get ANY traffic.
2. Need more work on your posts. Fix spelling errors. Try to use a set width&height when posting pic posts. It looks crappy when this post has small thumbs, and the next has half as many pics but twice as big, etc. You get the idea.
3. Make some categories dude. You talked about SEO, but you're not even posting to descriptive categories.
In terms of starter (free)traffic, start posting your site on porn sharing forums. Post your galleries there with a link to your page or whatever.
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