multiple girls, 2girls, upper body, huge breasts, medium hair, black hair, spiked hair, spiky hair, hairband, headband, yellow eyes, amber eyes, swimsuit, pantyhose, backpack, purse, aged up, petite, toned, big breasts. ,high quality render anime,athreos anime girl. se four-tone cel shading with a base color, a broad shadow layer, a smaller deep-shadow layer, and bright hard-edged highlight shapes, then finish it with crisp black ink linework and subtle high-contrast airbrushed highlights for extra clarity, polish, and depth. Colour it the way 2D anime cel painting works: every shadow and every highlight is a single hard-edged block of flat opaque colour, with no gradients and no soft blending.
Athreos