I've always loved the way the sun reflects of rivers and lakes so I wanted to capture that. I don't know how well I pulled it off but I gave it my best shot. I re-worked the layout and nebula like 10 times and could never find something I was really happy with.
Original dimensions 4500x2581
Moons done with 3ds max
Planet and space done in Photoshop
Atmosphere made with Terragen
Terrain and cloud textures gathered from NASA.