I had an artist do an awesome piece for me a while ago, but losing track of my accounts led me to forgetting who this artist is.

Here's a sample of my commission, just so someone won't post the full thing for me: http://d621.net/unkwn-01.png

Angiewolf has a similar signature...
post #1053574
...but that's probably just a coincidence, since the art-style doesn't match. Definitely looks like AW to me though, so maybe check this and see if any ring a bell?: https://e621.net/tag?name=a*w*&type=1&order=count

Meh. I have an intense dislike of vague signatures. Unknown_artist_signature is full of those.