Anonymous¹: This looks familiar... Sister 1 on another site?

Anonymous²: Artist, or rather the circle who made this is called Stargate3D. They also have a lot of sister stuff, so there's a good chance that's what you have in mind.

http://www.dlsite.com/maniax/circle/profile/=/maker_id/RG16742.html
For their titles

Anonymous³: @Anonymous:
Thanks Anon. You da bes'.

seanofwar: Need much more of this!