Isabel was always such a diligent student, even if she did play hooky (one had to, now and again. Aziraphale had been playing hooky from work for almost as long as his job existed). He knew first hand that she was a very reliable teammate in a pinch, too, so her studies had been paying off. Perhaps a small blessing wouldn't hurt, just something to make sure she always had a friend to borrow notes from, should she not show up to a class.

"I hadn't thought of that." Piecing it out did make sense, now that he considered it. After all, a painter didn't just throw color on a canvas. There were layers.

He wrinkled his nose with concentration. "Let's try this again." When he completed the motions of the spell, the bowtie was dotted with stars. They weren't exactly what Ms Yotsuyu had done, but it was much closer. He laughed in triumph and clapped his hands together. "Marvelous!"