The artist credited to this drawing is "Masahiro Yamane" but he is not the hentai artist of the same name, yamane_masahiro, that is listed here on Danbooru.

This artist mostly works an animator and mecha designer, his name is spelt:[山根理宏] where as the other Yamane has [山根正宏].

Animator's wiki page: http://ja.wikipedia.org/wiki/山根理宏