I'm not sure what the appropriate tag would be for this one. The song is 暗い森のサーカス (http://www.nicovideo.jp/watch/sm4371572), would it be dark_woods_circus, the_dark_woods_circus, circus_in_the_dark_wood...?

[deleted]

the artist tagged it as 暗い森のサーカス on pixiv

I think it's alice of the human sacrifice

The lyrics of "Kurai Mori no Circus (dark woods circus)" are written in the background of this picture.