Keep in mind, we’re talking about monetary value here, not emotional value.
Who Has Owned The Art In The Past
If a noteworthy person once owned a piece of art, that can drive its value up significantly. This is called provenance.
Whether The Painting Was Done By A Famous Artist Or An Unknown One
A painting that had once been believed to have been painted by an unknown shot up in value in value when it was attributed to Reubens. In modern times, this includes social media following and engagement. Something that’s also related to this is how often the artist has already sold, because more you sell as an artist, the more your name tends to get known.
Whether The Artist Is Alive Or Dead
Like I said before, when artist dies, he obviously can’t produce any more work, so whatever he has made becomes that much more valuable.
What doesn’t influence the value of art? How good/detailed it is. The value of art is also has nothing to do with how similar you can make yours in style to that of a famous artist. In fact, if your work looks too much like that of another artist, it will be less valuable, not to mention that you might be breaking some copyright laws depending on just how similar it is. But in the art world, people value, both emotionally and monetarily, uniqueness.
Now I don’t want you to think I’m saying that if you want to sell your art, you should forget about actually making good art and just focus on getting famous. I’m not suggesting that at all. Honestly even if I could paint and draw stuff that looked like it was done with my feet and people would fall over themselves to buy it, I would still feel the need to make my work the best I can for my own satisfaction. Besides, there is a chance you can make work that looks that bad and have people buy it, but I think you’ll have better chance if your work is of good quality.
What Makes Art Valuable(BBC doc hosted by Alistair Sooke)
Tips for pricing your artwork - artist vlog w/ Lachri
Painter of portraits and wildlife