I came out with this idea once I saw the triler of the movie “Batman Vs Superman: Dawn of Justice”. I showed it on Newgrounds and quickly got featured.
https://www.newgrounds.com/art/view/mavruda/girl-s-thing 
I’m pretty sure you saw same idea done by other artists /I know at least of two – one Spanish dude and another female artist – both of them did the same – but with different characters , instead of Supergirl. Batman stays the same though.

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