This is mesmirising!
The painting is by Holton Rower. If you want to see more about they are "hung" in a gallery see this "pour" page on his website
The Director, Cinematographer, and Editor of The "Tall Painting" video is David Kaufman
What I can't work out is whether there is a sequence to the paint colours or whether this is totally random/ It looked a bit random to me. What do you think?
Also, how do you think they achieve the specific viscosity of the paint so it all flows at an even rate? Is the paint thinned or not?