Complete rework of the previous: I changed the background image to the Andromeda galaxy, moved the sunlight and moons, added a blue tint to the haze and water, and a selected a different POV on the terrain. No postwork this time.
It's not perfect, but better than my last. It's been a learning curve for sure – and mine has been a straight line for a long time...
Many thanks for cyphyr's tip to turn off the image color interpolation, and especially to Volker Harun who suggested some very good artistic nuances for me to consider.
