Love it. See, this is a style more people should approach to get away from those old blend + light up signatures (that's something that's been done for more than 5 years now). What you've done is minimalistic and collage-like, and the result is just cooler.
Overral, the sig is nice, and it works. Text font feels iffy, but it's perfect there. The render could use more detail around the face to look cleaner.