The three ladies are gathered around a table, engaged in an intense debate. The two siblings are both young and full of life, their faces animated with emotion. The most senior of the trio is their mother-in-law, older and wiser, and with a gentle but authoritative air. She is attempting to soothe the discord between her younger relatives with her measured words. To evoke the passion of the debate, use an array of warm, vibrant colors such as oranges, reds, and yellows. And then to emphasize the mother-in-law's presence and wisdom, choose cooler, subtler shades like blues and purples. Finally, use a soft neutral tone to represent the table as a unifying element in the scene.