The point of the girl with the cut lip was to illustrate what Esteban had just said. He was talking to Beatrix about Bill shooting her, he said that if it was him he wouldn’t have been that extreme, he wouldn’t have shot her, just cut her face a little!.. Then the girl with the cut face walks up and illustrates the point, reminding the audience and Beatrix that Esteban may be funny, but he’s also a nasty dangerous man like Bill.
