Ren watches as the other seems to fly for a moment, impressed... but just then, he starts falling back down. He almost reaches out with Maria- but he's probably got it handled with Sandalphon, right?

"Gonna need some more practice on that one, huh?" he comments. It's a bit teasing, but not a taunt. He still needs to practice enough that he can switch between Personas midair faster than he can now, after all.