Using the provided authorized reference image, create a 1:1 square ultra-refined 4K digital portrait painting. The portrait shows a beautiful young woman in a three-quarter half-length view, slightly raising her head and looking toward the upper right, with a thoughtful yet determined expression. Preserve the reference subject's core identity cues, age impression, face shape, facial structure, proportions, hairstyle, hairline, and hair texture while avoiding imitation of any unauthorized person or celebrity.
Subject details: tan-brown skin tone, naturally voluminous hair, bright enhanced eyes, a defined nose bridge, and prominent cheekbones. Lighting: soft frontal window light illuminates the face, ears, and hair. Add glossy painted highlight reflections on the forehead, nose bridge, cheekbones, chin, and lips. Individual hair strands have crisp specular highlights, creating a refined editorial portrait-painting sheen. Keep only faint venetian-blind shadow stripes across the face, and let the hair catch natural shine.
Rendering quality: ultra-detailed 4K digital painting focused on facial features, ear details, skin texture, and individual hair strands. Wardrobe: a deep navy kurta shirt with minimal details, rendered with the same expressive acrylic brushwork as the face, painterly shadows, color blending, subtle highlight reflections, visible paint texture on fabric folds, and stylized light accents.
Lower fade effect: the lower part of the portrait gradually dissolves into painterly brushstrokes. The shoulders and clothing softly fade into abstract paint texture rather than ending with a hard edge. Use loose acrylic strokes, gentle opacity falloff, and scattered paint splashes to blend smoothly into the background from the chest downward while keeping the face completely clear and richly detailed.
Palette and background: rich saturated painterly tones, warm burnt orange, terracotta, and peach balanced with deep navy and cool blue shadow accents. Use high color depth and contrast like a modern editorial illustration. The abstract painted background has a cream and beige base layered with orange and terracotta brushstrokes, soft cyan accents, paint splatters, and textured acrylic-style marks.
Style: expressive acrylic and oil painting, modern editorial illustration, centered portrait composition. Above the subject's left shoulder, add a very small fictional handwritten calligraphic signature mark that fits the layout. Keep it decorative and non-identifying. Resolution: 4K feel, ultra-sharp focus, rich color grading. Public-template constraints: no real artist signature, no real brand logo, no private information, no UI chrome, no watermark, and no unauthorized celebrity likeness.