Change up training data to half in-game art(remaster and old monochrome), half fanart. Prompt black eyes, no sclera for Imagawa's offical mob face art else do colored eyes tag to your head canon, my personal preference is loosely based on in-game sprites

Lilith: purple eyes, red hair, purple cape, blue armor, blue wings, brown scythe

Luna Vampire: green eyes, blonde hair, light blue cape, green armor, green wings, yellow scythe (Tobe colored Luna's wings blue in the preparation screen back in GBA days.)

Balrog: red eyes, blue hair, red armor, red cape, brown scythe (Balrog famous CG appearance drawn by Tobe has green hair)

Belial: yellow eyes, green hair, yellow armor, brown cape, brown scythe

Train on Tsubaki also, doesn't do mob eyes well but she can hold scythe in both IL v2 and Tsubaki. IL v1 has the mistake of training on scythe, holding weapon tag so it always show up which can be annoying for nsfw gens.