That last remark at least manages to at least make her look a little less unsure, since it's ditched in favour of looking flustered at that very last comment. Madoka's cheeks definitely are the same colour as her hair right about now, if not even a little deeper-coloured.

"Ah, no, that's.."

She starts trying to deny the statement, but that feels too rude, so instead her voice trails off for a moment. Better to shift the focus back to the other, since Madoka sure can't handle being the focus point of any conversation. "You can change your hair..? I didn't know that."