Create a highly detailed, photorealistic vertical portrait of an adult woman standing at a crowded Halloween party, framed from roughly mid-thigh to just above her head. The composition should resemble a polished smartphone photograph or high-end AI fashion portrait, with the woman centred and sharply focused while the party scene behind her is softly blurred. The woman has fair skin, a slim yet softly curving figure, and long blonde hair styled in a deliberately messy, voluminous updo. Her hair has darker ash-brown roots and multiple shades of beige, honey and pale blonde. The crown is lifted high with loose, tousled sections, while several long strands fall around both sides of her face and over her shoulders. Fine flyaway hairs are visible around the top and sides, catching the coloured party lighting and making the hairstyle feel textured and natural. She looks directly into the camera with a serious, self-assured expression. Her head is held upright, with her face almost square to the lens. Her lips are closed and relaxed, without a smile. Her eyes are large and pale blue-grey, with bright catchlights that make them especially prominent. Her makeup is dramatic and glamorous, sharply defined dark eyebrows, smoky charcoal and black eyeshadow, strong black winged eyeliner, thick upper lashes, darkened lower lash lines and softly blended shading around the eyes. Her complexion is smooth and evenly illuminated, with subtle contouring along the cheekbones, temples and jawline. Add a soft champagne highlight across the tops of her cheeks and the bridge of her nose. Her lips are full, matte and muted nude-pink, with precise definition but no exaggerated gloss. She poses with her left arm raised, bending at the elbow so her hand rests behind or within the hair at the back of her head. The raised arm creates a strong diagonal shape across the upper-left section of the image. Her right arm hangs naturally by her side and is mostly cropped near the lower-right edge. Her shoulders are relaxed, and her torso faces the camera directly. The pose should feel confident and fashion-oriented, as though she has paused during the party to take a portrait. She wears a bold black-and-white vertically striped blazer inspired by theatrical or gothic Halloween fashion. The blazer is left completely open. It has a structured tailored cut, narrow lapels and sharply contrasting stripes of uneven visual width. The sleeves are full length, and the striped pattern follows the direction of the garment, curving slightly around the arm and torso. Include realistic seams, folded lapels, a small breast pocket and dark buttons near the lower front. The fabric has a slight satin or synthetic sheen that reflects the party lighting. Under the blazer, she wears a black structured lingerie-style bra with sheer mesh panels. The cups are shaped and supportive, with opaque black fabric along the lower and outer sections. Across the upper cup area, include translucent geometric mesh