>>28133960>Mallow is a very distinctive animu girl.Pfft, no.
But still, for whoever made these to have drawn Mallow that spot on well before she was introduced, obviously they're from somebody official.
That being said, if you really want to put this argument to rest, can someone translate the circled things from moon runes to English? Assuming they're names, we already found Marshadow, so if these are real I'm sure they already have copyrights/trademarks for them.