There are a lot of really successful elements to this piece. First off, excellent use of complementary colors -- it really makes the whole thing really dynamic. Also, your use of contrast between the lights and darks are spot-on. The biggest thing I have to critique on would be the blacks around the edges. There's a little too much of it (although that's definitely an opinion). It might strengthen it if some of that black faded a bit in some areas or had some detail or form to it. I think the black in the lower section works really well, especially in the lower right, but I think the stuff in the top/upper left could be a little less dramatic so that it doesn't frame the interior completely. That might add a little more freedom to the interior. Also, a small suggestion: maybe try to make the planet a bit bigger next time. Definitely isn't needed, but that might add a bit more variation in size between the non-cloud items Really cool overall. The photomanipulation is clean and seamless, and the entire vibe works really well. Good job!
While I have seen a lot of space art already, this one is a bit different. This one makes you feel like you are really on another world, a moon of a big gas giant. You managed to make it look 'pretty' by having nice contrasts between the colours, by having lots of details and at the same time make it look realistic. A lot of space art I've seen looks amazing but just can't be 'real', this one does!
I also wonder, what’s flying between the clouds, alien life forms? Floaters and hunters from Carl Sagan? I love it when there’s things to discover and to wonder what’s really there, just like in real space exploration.
Wow, what can I say, this is utterly amazing, and one of the most believeable space arts I have ever seen. It is the small things that really sells this piece, like the flock of birds, this one takes you far far away and then some, love it.