To see the whole story of my art collection, please check out my Journal "My Science Fiction Story for my Art Collection." [link]
Photoshop Digital painting 40 hours.
You are passing through the rings of an alien gas giant towards one of the moons. This moon system (Sunatta) clearly has signs of being in the Goldilocks Zone, since gas giants in the HZ (habitable zones) are likely to be blue and white.
The moon itself is a strange one, far denser than gold, but far less massive compared our moon which gives it quite a bit of surface gravity. This explains why the atmosphere from a distance is so thin it's barely visible, much like the way we look at the Earth from the moon, even after the atmospheric pressures have reached about 1/6th that of Earth's at Sea Level when their para-terraforming of the moon was completed. The moon also appears to be somewhat volcanic, but not to the extent that terraforming is out of the question.
The green represents the genetically engineered planets designed to tolerate and thrive in the harsh environment on this moon.
It is unclear how such a tiny moon gained such extreme density