Possibly a Russian poster going by Брунхильда / Machine translated to Brunhilda.

I don’t have an account to confirm, but:

https://pikabu.ru/story/brunkhilda_12349103

This says brunkhilda…idk.

I only had results via Yandex out of the 9 reverse image search sites I tried, which is Russian, so that’d be another possible clue.

I found her image uncredited unfortunately.