This is all I got from a "blank" search; 4K res. 39 images. Removed a lot of american/japanese pop-culture. The site seems to be all about anime and videogames.
https://paste.pics/73b39942360c0733780430de0f0e3a6f
Complete blacklist: https://pastebin.com/jBF3Nt59
This is the eternal problem... the masses dictate the availability; since the masses are mostly kids and machists, we are left with kids and machist wallpapers.
PS1: (kids are more like "young adults", saddly) PS2: I'm glad you removed the blacklist limit finally.