no. that's private. if people knew, then the store would be filled only with those images. and even if you did know, it doesn't mean you'll sell any of it, because of how the site is set up. and how well that person is known. its not just the subject, but the style.
there is no particular thing that sells better than another thing. its best to post your best stuff, and advertise it. you will need an avatar if you want to be in the search. assume one of those images were sold. you can see things on the recently sold page, but its not that accurate, it repeats images, and doesn't show all of them. and it doesn't show how many were sold. if your constantly chasing others, you won't make an impact for yourself.
i suggest keep uploading at the quality you have now, and advertise it, i can see it selling.
---Mike Savad
http://www.MikeSavad.com