I recently finished El Toro's first promotion quest. Since I've finished it, I've noticed what seems to be a glitch in one of his Critical Hit animations - specifically, the one where he slashes the sign of El Toro and throws flower petals. Partway through the animation, two colored circles appear in front of his eyes, about even with the edge of his hat brim. I can't tell exactly what they're supposed to be (maybe eyelids?) but whatever they are, they're quite a ways out from his face. They only appear for a small segment of the animation, and might not even appear every time - it's hard to tell, since I rarely see him use that attack. It's possible that they do appear every time, but are only visible if the camera is basically directly in front of him.