A character from Ishi no Nai Tenshi wa Boku no Sei Shori Yougu | My Cumdump Is a Vacuous Angel by Yoshiie
Her angel dress is too difficult to train due to a very limited dataset so I've came up with some prompts that gets close to it.
===IllustriousXL===
strength: 1
trigger: Vacu0us-4ngel, green eyes
usual hair: h4ir-a, hair over shoulder
hair bun: ha1r-B, hair up
angel form: white halo, angel wings, white wings, large wings
angel dress: sideless dress, sideboob, white ribbon, halterneck, long dress, white bow, detached sleeves, sash, back bow, thighs, ribbon dress, hip vent, pelvic curtain
town outfit: white capelet, long dress, long sleeves, plain dress, brown dress
---PonyXL---
strength: 1
trigger: Vacu0us-4ngel, large breasts
angel form: halo, angel wings, white wings, large wings
angel dress: white dress, sideless shirt, sideboob, white ribbon, halterneck, feather dress, long dress, white bow, hip vent, detached sleeves
town dress: white capelet, long dress, long sleeves, plain dress, brown dress
alternate hairstyle: single hair bun, bun with braided base