Hello!
I have a little spare time between online classes and regular work to do this for fun, I wanted to show a mock-up of gravity I did.

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http://www.screenshotdumpster.com/view/m7Gbd55032/126952446571_3839)
Before I started I looked up statues of Atlas since it was always a great show of burden. The figure itself does borrow aesthetic from the classicism of the piece, as well as the burden shown by Pyramid Head from Silent hill (placing great stress upon the head). The subject would also be burdened by chains, both wrapped around and emanating from (It has holes which produce more chain on it). Gravity itself is an invisible force, so working with this I wanted to illustrate it as an abstract geometric mass that carried in a vertical movement. This is all very rough, and I did it in gray-scale because if worked on further I could carry over to photoshop and color it there using the gray-scale as foundation.
This was fun! I may try Atomic bomb or coldfeet mockups later. Take care.