Day 208: Tokyo Ghoul
No source, but I’d guess it’s from the manga/light novel
Author: wallpaperaday
Day 204: Spice and Wolf
Seems to be official artwork (so credit to Ayakura Juu) over a background
Day 200: Black Lagoon
Seems to be credited to Hiroe Rei, the guy behind the manga and anime
Wallpaper A Day 