Brilliant work! All the way around - costuming, posing, etc. Dig your gusto too. Will check out your whole gallery at some off hour - DA is so busy right now that non-premium peons such as I don't get a rapid share...
I could only imagine she's staring out into the ocean wondering just why she exists and why she had to be an outcast and so much more besides. And of course the fact she's immediately ostracised due to her supreme powers and abilities.
Judging from this shot, she doesn't look like she gives a funk. She knows she's extremely powerful and can crush the human race with ease, so if you dare try to oppose her, expect a quick and swift end.
Excellent costuming and great shot too! It has the makings of power and confidence, something we've always known Supergirl for in any time of need. Well done, and hope to see more.