Trained on IllustriousXL-v0.1.

• Default appearance: defKarla, black hair, long hair, brown eyes, white kimono, cleavage, large breasts, long sleeves, chest strap, blue obi, side slit, knee boots, yellow footwear

• Resplendent (FEH): resK4r, black hair, long hair, grey eyes, hairclip, two-tone dress, black dress, blue dress, turtleneck dress, high collar, detached sleeves, wide sleeves, layered sleeves, black gloves, blue sash, knee boots, black footwear

• Spring Reveries (FEH): sprKarla, black hair, long hair, hair flower, lop rabbit ears, green hairband, grey eyes, detached collar, large breasts, cleavage, strapless leotard, white leotard, short sleeves, shoulder cutout, see-through sleeves, white gloves, purple wrist ribbon, blue sarong, see-through skirt, blue pantyhose, high heels, gold footwear

• Sun-Piercing Steel (FEH): sunKarla, black hair, long hair, grey eyes, hair ornament, neck ring, toga, single bare shoulder, cleavage, large breasts, armlet, arm warmers, bracelet, single sleeve, corset, pelvic curtain, print legwear, brown leggings, sandals

Her eye color varies in the official art for each FEH alt. Sometimes they're grey, sometimes more brown, sometimes a bit blue. Just give her the eye color you want if the inconsistency bothers you.