I am trying to find out if this painting is original or a print, and what kind of value it may have if I try to sell it. This painting appears to be an oil painting, but, I've seen others out there that say they are prints. This one has raised paint on it as if it was an oil painting. It is large - approximately 4' x 5'. I love the painting, but too large for my space and think I should sell it. What is it's value? Thanks