I drew this because I was feeling sad. Let me explain the story of this pic. Terra is thinking about her mom. Her mother died from a terrible illness when she was very young. It devastated her and her father Dai Gui. Terra remembers that she, her mom and her dad would always watch the sunset. Now, each time Terra watches the sunset, she remembers her mom. That's part of why Dai Gui is so protective of Terra; he doesn't want to lose her.