No there are differences.One include use of oil in the picture and does not.The value is also different.
It certainly does.
According to Wikipedia the most expensive painting is Jackson Pollocks No.5 (Oil on Fiberboard, 1948) which was sold in 2006 by David Geffen via Sotherby's for an estimated $140 million. I always...
mise en abyme
No one has determined that, since painting has been around for thousands of years and is so old it would be very, very difficult to find out.