Really moving away from Strength's ordinary design, but it's still nice!

You sure she's not mix up with Black Gold Saw?

I think this an original character someone made up not STR

Reminds me of Allen Walker

My guess would be this is an amalgamation of both Strength and Black Gold Saw, hence the general structure of the get-up (hoodie, shorts) + the white hair; the claws and particularly the mismatched eyes, which could be a visual indicator of both characters.