I really like this picture! It shows that anyone can change! For example, in Part 1, Sakura was a useless, obsessive fangirl, but in Part 2, she was actually quite useful! And when you initially meet Sai, he's emotionless. But when Deidara referred to Shin as a bomb, Sai got enraged, and allowed his emotions to show. Naruto had the guts to try and reach out to Sasuke, since he never wanted to give up on his friends. Sasuke wanted power, and he obtained it, although it was not without cost.