This earthen glyph of elemental earth power is another example of the 'alien art' that i have enjoyed making over the years. Though not of extraterrestrial, but intraterrestrial origin, this is a symbol of great power, perhaps on some door deep beneath the earths crust. There are many who believe in intrateresstrials, and a place called Agartha that exists inside of our world. The people inside the earth have allegedly issued warnings to the surface, they warn that if we don't stop F#$%^&king up our earth, they will be forced to eradicate us.
I can totally see where they are coming from...
http://robotlizzzrd.deviantart.com/art/Glyph-of-earth-606538152