Welll done. I love the main planet, shadows, texture...it is simple and nice. Those lines behind the planet are very interesting in some way. The starfield is O.K (maybe some "bigger" stars are missing to enhance the scene). Only thing I would change are those colors of the background...especially the combination of yellow and purple. It's very extraordinary and hard to combine them the right way and I think there are many other color combination which could fit better. Nevertheless good piece.