They have thousands of pictures and wallpaper, Touhou ou not! Just type a name in the chercher bar for a certain character and you'll most likely get 20 pages of fond d’écran and all that good stuff!
Now, I went a little overboard and spent quite a few hours on that site, but trust me, a dedicated fan would l’amour it.
The site also includes another populaire Japanese company, Vocaloid, so don't forget to check that out, too!
