Something really bothers me about this one, Bob, although, I can't quite nail it down to one point. I agree it is a nice image but, I think there is a lot of atmo' noise, a great deal of uniformed strata layering and, the plants appear to look like alpha planes to me. Also, the sharp cut off of the mountains(those vertical edge parts) are very extreme to be real to me.
I might just be too picky, everyone else seems to think it perfect. Sorry for speaking my mind but I think you have done
very much better, composition wise, before.
After all of that, I really do like this pic', those are just a few things bothering me about it, sorry, I hate to be a rain-cloud, I think it might be that the pov is in the entire shadow of one of the terrain features and that's drawing away from the realism for me, it's a hard balancing act when there is no shadow detail, I don't know.