I'm no expert, but they look good. Their heads are round, eyes are small, and color is nice as well. I personally love the longer bottom fins. Gill plates are long enough to cover gills, and the jaw seems strong. Eyes are small, does not look stunted.
However, since the picture is taken at an angle, I can't tell how round they are. They look to be around 5" or so, maybe more.
If they're a pair, I would say they would cost $500 and up maybe.
We have some experts on the forums here, and hopefully they'll chime in soon.