[Shh, we'll say this one is black. Some trees have black bark.]

That's right. He's a St. Bernard. He's huge! [Alright, adding a bit more red. She needs to make this tree red, not pink.] It'd sure be nice if we had some real trees in here, huh?

[Once she's satisfied, she looks at Rin expectantly.]

Alright! I think it's good. What's next, Sensei?