In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: The painting is one of Lichtenstein's first non-expressionist works, and marks his initial employment of Ben-Day dots which he used to give it an "industrial" half-tone effect. The painting is his first use both of a speech balloon and comics as source material. The work has visible pencil marks and was produced using a plastic-bristle dog brush to apply the oil paint onto the canvas. By the time of his death, Look Mickey was regarded as Lichtenstein's breakthrough work.
In reproducing a mass-produced illustration in a painterly style, Lichtenstein simplifies by reducing the composition to primary colors, which serves to accentuate its mass appeal and largely gives it the "pop" look. Typically, Ben-Day dots enable an artist to produce a variety of colors by using dots of a few colors to give the illusion of a broader palette. By mixing dots of different colors, like an ink jet printer, just a few colors can create a broad spectrum using only a limited number of primary hues. Lichtenstein as a painter and not a mass production printer is able to avoid this, achieving his individual color tones without blending existing hues. Instead, for each color that he wanted to include in a work, he used that color paint.Lichtenstein made several alterations to the original work: he eliminated various non-essential figures and rotated the dock so that Donald looks off the side rather than the end. At the same time, he kept Donald and Mickey in almost the same positions as they were in the original. Lichtenstein not only redesigned the space, but also altered the position of Donald's body and fishing rod for better balance and eliminated signs of stress and exertion to form a meticulous composition. Walt Disney said about Donald Duck: "He's got a big mouth, a big belligerent eye, a twistable neck and a substantial backside that's highly flexible. The duck comes near being the animator's ideal subject." Lichtenstein's painting reflects many of these physical features.Compared to the original source, Donald leans further forward towards the water, and Mickey less so. Mickey's face is more flushed, seemingly less from exertion, than embarrassment for and perhaps schadenfreude towards Donald. The composition incorporates some of the foibles of comic book printing, including misaligning the joining of the contours of the waves with the yellow sky to give rise to an area of white space.
What was the full name of the character Disney said had a big mouth, a big belligerent eye, a twistable neck and a substantial backside that's highly flexible?