Fine Art America has an estimated 25,000-40,000 artist, world wide there are millions of artists selling prints. It’s a brave endeavor and only a few artist will be successful. Once you sell a few to friends and family it gets quiet really quick unless you know people.

https://www.reddit.com/r/photography/wiki/business#wiki_how_do_i_make_money_with_my_photography.3F_where.27s_a_good_place_to_sell_my_photos.3F_is_stock_photography_.22worth_it.3F.22