I'm really enjoying this series of maps. Maybe a little more deep shadow around the edges of the planets, they terminate a bit bright for me. The rust effect could be fun if its intended to look like a map hanging up someplace, but if you are going to rust the frame you should show other signs of aging as well, fading of the color of the print, water damage, or if its hanging in a public space some cracks and graffiti if its under plastic protection, maybe screws for affixing it (with one missing). Good texturing on the planets they have that feeling of hanging in space like heavenly bodies with the rich colors and sharp edges.