Create an Instagram-worthy photo of a seductive alt girl in cosplay with a mix of gothic and punk elements. She is wearing a bold, edgy outfit that includes a black leather jacket adorned with chains, fishnet stockings, and chunky combat boots. Her vibrant hair is styled in neon purple or pink, adding to her alternative vibe. Her makeup is striking, featuring dark lipstick and smoky eyes, enhancing her rebellious look. The girl poses confidently with a mischievous, flirtatious expression, exuding attitude. The background is moody and urban, with neon lights casting dramatic shadows and vibrant graffiti on the walls, further emphasizing the gritty, rebellious atmosphere. The overall aesthetic captures her bold and daring style.