A young woman with long wavy dark brown hair, wearing a Cheshire Cat Halloween costume: shiny purple cat ears headband, off-shoulder long-sleeve top with horizontal purple and hot pink stripes, shiny purple satin corset with front buttons, purple and hot pink horizontally striped tights, and fluffy faux fur leg warmers in deep purple and hot pink. Her makeup features purple eyeshadow, dramatic eyeliner, glitter on cheeks and forehead with a lavender tint, and bright magenta-pink lips. She has long purple-painted nails. She is sitting on a gray couch with her legs crossed (right over left, right knee raised), right hand near her chin in a coy pose, left hand resting on the couch, head slightly tilted, looking at the camera with a subtle flirtatious smile. The couch has colorful psychedelic mandala-patterned pillows and one plain beige pillow. Background is a light gray wooden plank wall with a white-framed window showing darkness outside (nighttime). The photo is taken with a smartphone camera using direct front flash, creating harsh lighting and sharp shadows, slight high angle shot, medium-full frame vertical composition, casual party snapshot aesthetic, vibrant purple and pink color palette against a neutral background, Y2K Halloween party vibe.