May I ask what you don’t like about your photoshelter site? I think your new site looks excellent! The only problem I see is the copyright watermark in the center of the main image. I would at the least reduce the opacity of the watermark. Better yet remove it all together. I’m not a fan of those…
You can find out more about that here:
http://www.photoshelter.com/help/tut/custom/watermark
I would stick to using one website for your images.