Can you tell this Hentai name?

[darkchidori]

Here picture

 

[pizzacat]

The picture seems to be part of an unrelated ad.
However, the character in the image is elena vilenskaya, from a long-running doujin war novel series called gakuen taisen valkyries.
The artist of that image is derauea.
Here is the full version of the image: https://danbooru.donmai.us/posts/2320871