Uhhh I'm think those two girls are actually not Mikuru and Nagato despite looking very similar. One thing is that I think both the eye colors are wrong, at least I'm sure it is for the purportedly Mikuru, and another picture from this artist has the exact same girl as the Mikuru-for-now on the left, yet it's tagged as an original character. I think they're both just original characters, possibly at least. Can anyone figure this out?