I always try different techniques. Now - a - days, Spacecrapes are on my mind but maybe later my mind will be twisted & my style will be something no one ever expected of me. When I started photo manip then all my watching were simply stunned. I will definitely move from wallpapers to something new.
The colour sure is nice, I mean - blue is a common colour for space but it's always a refreshing one
Bright space art can be tricky, it seems you went a bit overboard with the glowing atmosphere of the planet. The contrast is really high which does fit most of the space scenery here, but for a more natural look the brights could be a bit dimmer and the darks not so black. Ambient light (light reflected off othe robjects) could also be used in such scenes to dimly illuminate the dark side of planets, normally that dosn't happen in space but here there is a lot of light and possibly more of it behind the viewer...Best example of "bright space art" I can think of is this [link] notice how even though the whole scene is bright, very little of it is actually "white"