I thought the name "Awilda" was strange AF while familiar, so I looked it up. Turns out, it's the same name as One Piece's "Alvida"... which itself is a misspelling of the original legendary Scandinavian pirate queen "Awilda", making the name real and actually accurate.
For the semi-historic female pirate, the variants "Awilda", "Alwilda" and "Alvilda" are all attested in different sources. There's also a pre-Viking Age Danish shield-maiden and raider with her own fleet of longships named "Alfhild" who may or may not be the source of the story.
In any case, she's from long before the 17th century pirate era costume depicted here.