Not that I can see this getting approved given the size but, what is the name of the Littlewitch artist again? And what exactly is the littlwitch_romanesque tag for?

The artist name you're looking for is oyari_ashito.

littlewitch_romanesque is the tag for the game 少女魔法学リトルウィッチロマネスク (Shoujo Mahou Gaku Littlewitch Romanesque).

http://www.littlewitch.jp/home/product/pg242.html (Littlewitch game directory)

This character is from rondo_leaflet.

Thanks, added some basic info to the wiki.
We used to have a littlewitch tag but it seems to have been subsumed into oyari ashito now.