I think it's Skyfall. The changing faces in Skyfall are often Q-ified, and the angel you're talking about is called Icarus (an anime that's similar to the humanoid computer Angel Heart. It's a very funny anime where the male pig is actually very gentle, but on the surface he seems to be very horny. 09's October release (the story probably centers around the daily life of the male pig and Icarus). Then came a cyborg MM with a pretty pathetic life.)
This is the introduction ic.qq.com/comic_work/244/index.shtml
This is the online viewing address? /search_video/q_%E5%A4%A9%E9%99%8D%E4%B9%8B%E7%89%A9
lz see if it's the one below?
Finally. I wish you find that anime you want to watch soon~