That Korra piece by Artgerm has been around for years, since 2011 at least, Snoop. Very nice piece indeed. Sorry it's taken so long for you to finally come across it!
I actually like this rendition of Supergirl. Her eyes are wide-set enough to make her look slightly alien but still passably human, which is precisely what I'd expect with a Kryptonian. Very nicely done by Artgerm (as always).