It's an absolute b*gger, to be honest. I mean - I try to make a living from painting, but fall well short of that target. Without contract work and illustration, I'd have starved years ago. If 'we' wanted to make a living from 'art' no doubt the way to go is photo-realism. The majority of people will always be impressed by amazing detail and fantastic technique (and they will, some of them, wish to own such items) - BUT (and a quick Google will prove this) how does one attain any level of distinctiveness? I mean, if the painting looks like a photograph (usually because it has been derived from one), surely someone else with a similar technique will end up at exactly the same point. I'm afraid - (and as we have a musical theme running here, I'll paraphrase the Levellers) there is only one way, and that's your own! Be unique, distinctive, creative and happy - the bills probably won't get paid too often (without the crutch of other income) but when you DO make it, it will all have been worth it.