You know, it's funny. You do a lot of work with making some crazy and cool pixelart that's still a little messy in a lot of spots but is cool enough in concept to forgive that, but then sometimes you bring out a piece like this one. It's pixel-perfect. One of the cleanest pieces I've seen from you, and interesting to look at and very awesomely colorful at that.
I'll give two bits of crit just so maybe this post can actually be helpful. The large yellow light in almost the very middle of the piece seems a bit odd - I can't think of a city light that would be that large. Not bad, just a bid odd since it's SO large. The other thing is that the curving on the tail isn't quite round in some places. Seriously though, this is the sort of flawless piece that most of your stuff could be with refinement.
Also I love your skies, I just can't do skies like that.