[ Slowly and carefully, Mondo begins painting. Whether or not Jon expects it to be perfect, he wants to do it properly for his friend. He's not the best at doing intricate little things with his humongous hands, but he's not too bad when he focuses. Being aware of that, he doesn't continue painting when he takes his eyes of it to look at what Jon's sketching. ]

...Holy crap, that's real cool.

[ His voice is a lot quieter than usual ー it says something about Mondo "No Indoor Voice" Oowada ー however, he still looks genuinely impressed at the sight. Look at those details, damn! ]

Right, Batman is... uh, your dad's friend, right? [ Sort of. ] I remember Robin being really proud of him.