Google Translate suggests that the artist was inspired by KanColle shipgirls to get one girl who did survive the war and is still afloat as a museum ship a form. So here she is, The Last Ship of the IJN.

Technically Mikasa would count to, having been in the Imperial Japanese Navy as well but she wasn't in active service during WW2 and also isn't floating.

Actually, was Souya equipped with a gun during WW2? It doesn't say so on her wikipedia page.

Blue_Stuff said:
Actually, was Souya equipped with a gun during WW2? It doesn't say so on her wikipedia page.

Navypedia seems to claim that she was armed with 1 8cm gun and 2 25mm AA-guns during the war.

And four years later this becomes reality!