The thought bubble is coming from Ilse. Ilse is drawn with simple shapes, straight lines, and sharp corners. Most of the page is black-and-white. The only color is a bright red item worn by Ilse. Sometimes the item is a sash, sometimes it is a shoulder pad, and sometimes it is a bracelet. In the first image, where Ilse is thinking, Ilse has closed eyes and a slight frown. Usually, none of Ilse's facial features are drawn.