Modern art

I am from planet earth, but I was not familiar with Pollock, Warhol and Collings. Thanks to the video "This is modern art" I was introduced to them and their different forms of art. I was familiar with Picasso. To his way of creating ugly into beauty and his cubism. One of my favorite paintings from him is the "Dove of Peace"( that wasn't showed on this video) is a very simple drawing but yet so meaningful to the world. His creations with his big pen are so easy to observe then you have his cubism that is the opposite of simpleness. I was very impressed with Pollock's art work and the process of him creating them, it was more than just paint thrown on canvas. I believe it was his true self coming out on paint, It seemed like he made his life more complicated than what it really was, and his only escape from reality was painting. Warhol was my favorite of the three. He was very creative and was willing to risk experimenting, compared to the others. He succeeded in all of his attempts. I believe his usage of drugs helped him create more open and different art than the others would dare to create when sober.They were all part of modern art, but just like Collings said "we like modern art because we don't know what it is, and the reason it keeps changing is to make sure we'll never do"
1. Why was Picasso interested to draw sex paintings?
2. Did Pollock died on accident or was it really a suicide? if it was suicide, do you think it had to do with his fame?
3. Did Warhol painted any of the celebrities in their presence?
4. Why did Valerie shot Warhol?
5. Can we see any of their work in Houston?
6. What was the point of Collings was trying to make by showing the artist graveyards?