How do I get better SEO?

is there a way to get better seo from people using the photo contest form?  people post regularly - not alot but about 100 to 150 unique submissions a month- shouldn't i be getting better ranking?

how to leverage these unique visitors

Please note that SEO results are not relatively instant, and require some time to show fruits. You may revisit your website and content in light of the SEO best practices and then give it some time to get into effect.

I hope this helps. If you need further assistance please let us know. Thank you.