I really like every aspect of this: the color, Yang, and most of all, her expression. That expression says to me: This is not a happy Yang. This is not an annoyed/agitated Yang. This isn't even a Yang that has gone berserker mode because someone damaged her hair. This is worse. This is the Yang that will result if someone severely injures/mortally wounds Ruby. This is not the Yang that will play around with or taunt you. This Yang probably won't even give a battle cry when she hits you. This Yang will silently, systematically, and throughly beat you, possibly to death, until you are unable to even look in Ruby's general direction. Her expression won't change, the only sign of the inner inferno will be gritted teeth and possibly a tear in her eye. This Yang will leave the battlefield covered in blood, none of it hers. Raw fear will bury itself into the guts of surviving friend and foe alike in the wake of the carnage. Yet, amidst the crater and smoke-filled aftermath, once the threat is neutralized, Yang will be at Ruby's side, ignoring her own wounds, tending to her stricken/fallen sister with the care, love, and tenderness of a mother holding her newborn. Few things other than family will drive people to such things, one after another. Sorry about the essay, I got carried away. Awesome art, I look forward to your future work.