She's Kryptonian, baby! Or perhaps, Atlantean. DC kept changing her origin, so who knows what she is now? The most recent account I read (from the New 52 continuity), she was an adult Supergirl from Earth 2.
Anyway, flight, invulnerability, super-strength, heat vision, chill breath, super senses, x-ray vision. Every power that Superman has, except not quite as good as Superman because... he is Superman.
Drawn in Clip Studio Paint Pro on a Surface Pro 4. Here is the time lapse video showing my patent-pending "QuickPaint" process:
And here is the B&W line art version:
Any questions? About Clip Studio Paint? About comics? About my QuickPaint process? Comment below.