This can be called a co-creation. Everyone is painting on the same canvas. You can also upload pictures to incorporate into this painting. As for the resolution of this painting, there's no way to know.
Personally, I feel that the overall painting is very detailed and beautiful towards the center-right side, while the middle is quite chaotic.
Why don't you go add a few strokes too? PS: You need to register first.
Address: http://www.doodleboard.us/