safe, 1girl,serina (christmas) (blue archive),blue archive,@trek, solo, open mouth, simple background, long sleeves, white background, gloves, hat, pink hair, pantyhose, black gloves, medium hair, official alternate costume, pink eyes, hair bun, halo, coat, black pantyhose, capelet, beret, red headwear, santa costume, single side bun, red coat, red capelet, feather hair

(extra digits:2),name tag,pocket,blue shirt, pillow,sweat, speech bubble,through wall,monochrome, greyscale, letterboxed, border, sound effects, nipples, motion lines, sketch, multiple moles, old, early, signature, username, logo, bad hands, mutated hands, mammal, anthro, furry, ambiguous form, feral, semi-anthro, bad anatomy, bad proportions, extra limbs, extra digit, extra legs, disfigured, missing arms, too many fingers, fused fingers, missing fingers, unclear eyes, watermark, ai-generated