Even though I thought I come up with the term "Gravity Painting" on my own, I decided to do a quick Google of the term. The results were incredibly humbling.
First, there is a video of Amy Shackleton's process, here: (Click for Video Link)
Not only is the process & result incredible, when you go to her website's gallery, it is obvious that she is prolific.
Go visit it now. We'll wait for you. Aim Artistry
Also, there is Holton Rower’s Paintings, which can be found here: Holton Rower
And, a video of the incredible process is here: (Click here for YouTube link)
Feeling like I should go crawl into a dark, warm cozy place for a while now. But, the great thing about the modern world, is that there is room for many artists, with many different styles. It's great to see how others are using gravity and material science to create such work!