If you wish to change your character picture or generate a new one for your unique character, here is the prompt for "young female librarian"
1980s pop art seinen anime style vector illustration, highly detailed, disheveled young female librarian with glasses, messy hair, exhausted expression, facial features heavily shrouded in deep shadow and obscured by hair, bold graphic black outlines, flat vibrant fills, limited strict Christmas color palette using only black, red, emerald green, and white, high contrast, halftone and ben-day dots, retro 80s anime aesthetic, dramatic low-key lighting, vintage grain, masterpiece, sharp vector art --ar 3:4 --style raw
I did the above in -Grok but you might receive similar success with others.