I m sure this is only a art : http://www.mangago.me/read-manga/wana_wana_kiss/tr/83568/p...

mede shireru yoru no junjou

http://www.mangago.me/read-manga/crimson_spell/
http://www.mangago.me/read-manga/roumantei_no_juunin/
http://www.mangago.me/read-manga/kanga_na_spoon/
http://www.mangago.me/read-manga/hua_hua_you_long/

The pic you've posted is not just art,it is from the manga:
http://www.mangago.me/read-manga/roumantei_no_juunin/

or from: http://www.mangago.me/read-manga/ibara_no_ori/

ho my god it's the first time I like a picture the is really from a manga XD