When I look at the two images I want to combine elements of both together into one image. I like the way the light plays on the textures and shapes in the forground of the lighter image. It somehow looks more realistic to me, but the background doesn't quite look as nice as it does in the darker image. I'm not sure why, but part of the problem for me could be the uniformity and brightness with which the background fades out in the brighter image. The spacecraft color, lighting, and position looks better in the darker image. The difference in the images is kind of like comparing morning to evening to me, or summer to winter. :) Nice work!