I think the site is really nice, if you want to adjust your bio, keep it strictly business with only maybe 10% about your personal life/interests.
I have been selling online for years and years, not just with this site, but others as well. I have sold things via shows, ebay, etsy, etc. (just sayin' so you can take my opinion from experience) I am easily doing mine full time and if I wanted to expand, I could hire a couple of people.
You need a niche market!
What is it you are passionate about? Pets!
Focus on them.
What do people who love pets want? /They want something unique, they want something personalized, they want things that appeals to them, they want to be able to show people, they want it to open up conversations about their pets, they want to showcase their pets etc.
How can you do that?
Research top sellers on ebay, or etsy, ask people on here what they would buy.
Just a few things off the top of my head would be, photographs that you can have put on mugs, greeting cards, I bought a photograph of my dog that was turned into an oil painting with Photoshop.
Join more message boards, you need to get a reputation, offer contests, prizes, all that stuff.
Get some price points that people can afford.
Just tossing ideas out there for you, you can take it or leave it. It may not be the direction you want to go, but it is food for thought
I think the site is nice, but I don't see what it is you offer that other photographers aren't.