It looks like her right arm (the one on our left) got shaved a little too much when lifting that render- the rest of her is plenty thin, but it's hard to imagine fitting bones in that arm, much less the muscles to wave hello to someone or pilot a ship. If that's the way it's supposed to be- whoa. Reality is unrealistic.
I'm also quite skeptical of the emblem- the light color doesn't provide much contrast from the planet, and the black streak seems very out of place.
It's a good start (and way better than I could do), keep at it.