Very nice scene and an interesting composition with that big asteroid in the corner. Kudos. What I'm not so keen about is the complete lighting situation. It's not consistent. If you compare the elements of the scene, the planet is way too dark. The atmosphere should be brighter, maybe the land too, the clouds on the other side seem to be bright enough. On the ocean/land map I'm not so sure about the bright blue for the shallow waterline around the continents/islands, seems a bit bright too. Maybe a bit more green in there and a bit darker. The way it's now it almost looks like the continents/islands are glowing. The map itself is looking awesome.
yeah this was my second try XD i made alot of mistakes and i didnt understand the idea of the process yet, i forgot tu use a specular map for the sea and i think it has only one light, thanks alot for the tips man