Since a mage's hair can hold and gather mana it can be important for one to let their hair grow out. However since you are not a mage, I think this is perfect for you. And if you like it? All the better.

[Letting go of Gray's hair, Rin lets her hands fall by her side. Blue eyes watch Gray carefully. Happy to know that she's pleased with her new image, and that something good came from that Oracle trial at least.]