Make sure to describe her outfit in detail. Putting "relaxed eyes" in the prompt should give her the correct eyeshape.
Example:
hazuki mizuhara in her blue armor. Large shoulder pads. White breastplate. Shiny, metallic armor. Skirt. Long black hair. Water color. Detailed art. Detailed hair with lots of strands. Detailed armor. Smiling. Rosy cheeks. She is sitting on the marble step of a mage temple. White pillars in background. Her pose is polite and girly. Cute. Bishoujo. Big eyes. Medium_breasts. Blue eyes. Daytime lighting. Fond and sweet expression. She is wearing her signature headpiece with small metal horns on the sides. Detailed eyes. Pleated skirt. Bulky armor belt. Relaxed eyes.
