Oh I don't know about all that. I haven't taken anybody's advice here and I sell my work all the time. In fact, I have work hanging in finer restaurants. I can't keep it there. An image I posted here critiqued by Siskel, Ebert, Larry and his brother Darryl , and his other brother Darryl , has sold over and over again. 26 prints. 160.00 per.
I'm not kidding.
Critique is nothing more than an opinion. Sometimes it's better not to dwell on the opinion and move forward. You can't please these people. That is never going to happen.
I always see this critique: Well I wish this would have been here, or that would have been there. And then before you know it, the photograph turns into something someone else didn't create.
If you put all this time and money into something as simple as pressing a button, and you have won contests and still think your work is not good enough to sell. Stop now. You sold yourself short and you have no confidence.
It's not that hard. Trust me.