A note to anyone who may feel that there is something strange or weird about this image of Supergirl.
I am old enough to remember the first appearances of Supergirl, who as a
teenager (please note) was adopted by the Danvers family and attended Midvale High School. Although I cannot find a citation to prove it, I would assume that she was between 14 and 16 years old at the time of this origin.
My image is Super
girl, not Superwoman, Super Old Lady, SuperCrone, or Super whatever. I personally see nothing wrong with this image, it is of a young blonde girl at least (or greater than) the age I assumed her to be at this stage of her career. And Superman, Superboy, and Supergirl all frequently fly with one leg up like this, especially in the old Wayne Boring, Al Plastino and Curt Swan days.
If I made a mistake or error in judgement (and I'm not saying that I did), it was in not "relaxing" the drawn-up leg a bit. I therefore attribute this to her better "youthful flexibility".