He listens to her tune for a few moments and then once he figures it out, he starts to hum along with her. He has pretty good musicality and most music has some form of repeat that makes it easy to learn. So even if he goes off track at times, the overall flow of the song is consistent.

He finishes with drawing most of her and starts to work on the wings, adding every little detail to the feather with a speed of someone who is used to drawing quickly but accurately. Detail is important in any sort of picture and he certainly doesn't stay away from them.