Artist mentions it's based on the original cover art

^yeah, Samus pose feels very familiar to me

And here we have, ladies and gentlemen, probably one of the most badass Metroid picture out there.

It's pretty much the same as the Super Metroid cover, just mirrored and more badass.

MD5 mismatch of http://orig01.deviantart.net/093e/f/2012/324/b/1/metroid_by_digitaltofu-d5ksvxm.jpg