If I won it, I would name it Rose because of the marking on it's flank. To me it looks like a compass rose.
Plus the color of the mask reminds me of it.
Username: JayzPF
Gender: Female, of course! I somehow can only think of it as female.
Where did he get his mask?: Her crush, also a Keetin, made if for her. She had made him a blue mask as well, and they both wear it to this day as a sign of their friendship. Unfortunately, he moved away a while ago and they hadn't had any way to contact each other. She pines away with love for him.