Sakura love with Sasuke, Sakura kept her long hair at the beginning of the series, especially since he heard Sasuke would prefer girls with long hair. When he began to spend more time with him as a team, Sakura became concerened that Sasuke would leave him and the rest of Konohagakure because lust for power. When fears proved true, he did everything he could to prevent it going, even admitted his love and offered to join him.
you know? I think, Sakura looked more cute with long hair. but it is very suitable cospayer as sakura!! Good job!