Well, I have slowly developed a sense of what has a chance to please the masses, and what has a chance to please a small number of enthusiasts - in regard of my own photographic work. Meaning: if something pleases me very much, it has seldom chance to get sold to masses.
Most important: if you go for the masses, don't expect much money per picture. That would probably be more the postcard kind of selling, or maybe a poster or a calendar. But therer you have to produce masses to get a good price, and then sell masses for little money. It doesn't pay off, if you don't understand it as advertising cost on your side...
E.g. the last one might find a lover or two. Frame it nicely, e.g. on a large black passepartout and a decent aluminium frame, and you might sell it twice for so much that you would have to sell thousands of postcards to earn as much.
I think the coffee cups might go for small bucks, but they might be the door opener for you to get in contact with a bar owner. And then you might have a chance to hang the other ones, and maybe sell one or two that way. But I can only recommend that you do what you did: select shots, present them to friends and folks, get feedback, sit down and think about that feedback and start that loop again. Looking forward to discuss this matter with you. I am very interested in that bracnh of thoughts currently.
cheers
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