IDENTITY PRESERVATION INSTRUCTION: Using the uploaded photo as reference, preserve the person's exact facial features, face shape, eye color, skin tone, and unique characteristics while transforming their appearance into an authentic Regency-era portrait. Maintain the original facial identity, expressions, and recognizable features with perfect accuracy.

TRANSFORMATION DESCRIPTION: Transform the subject into a Regency-era aristocrat (early 1800s, Jane Austen period). Dress them in period-accurate Regency clothing: for women, a high-waisted empire silhouette gown with delicate fabrics (silk, muslin, lace) in soft pastel or rich jewel tones; for men, a tailored tailcoat, waistcoat, cravat, and breeches or formal trousers. Style the hair in authentic Regency fashion: for women, soft curls, ringlets, or an updo with loose tendrils; for men, period-appropriate grooming with shorter styled hair. Add era-appropriate accessories like pearl necklaces, cameo brooches, gloves, or a pocket watch. The overall aesthetic should evoke the elegance and refinement of the Regency period.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic historical portrait with cinematic quality, reminiscent of John Hoppner or Thomas Lawrence paintings
- Lighting: Soft, natural window light with gentle golden hour tones, creating a romantic and elegant atmosphere
- Color palette: Muted pastels (soft blues, blush pinks, sage greens) combined with rich jewel tones (emerald, burgundy, navy) and classic creams/whites
- Background: Elegant Georgian interior with damask wallpaper, classical columns, ornate furniture, or a refined garden setting with manicured hedges and classical architecture
- Texture: High detail in fabrics (silk sheen, lace intricacy, wool texture), skin texture preserved but with soft, flattering quality
- Mood: Sophisticated, romantic, aristocratic, refined
- Period accuracy: Authentic Regency fashion details, historically appropriate styling

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on face with perfect identity preservation
- Professional quality portrait photography
- Aspect ratio: 1:1 or 4:5 (portrait orientation recommended)
- Film grain: Subtle, vintage film aesthetic optional
- Depth of field: Soft background blur (bokeh) to emphasize the subject
- Color grading: Warm, romantic tones with slight desaturation for vintage feel

NEGATIVE PROMPT GUIDANCE: Avoid: distorted facial features, unrealistic proportions, blurry face, loss of likeness, modern clothing elements, contemporary hairstyles, anachronistic accessories, poor fabric textures, unnatural lighting, cartoonish style, low resolution, pixelation, modern backgrounds, incorrect period details

USER CUSTOMIZATION: {additional_context}

ADDITIONAL TIPS:
- For best results, use a well-lit, clear photo with face visible
- The prompt works for both solo portraits and couples
- You can specify preferred colors or fabrics in the customization section
- For a more dramatic look, request "ballroom setting" or "garden party" in additional context
- For specific Regency styles, mention "Bridgerton-inspired" or "Austen-era" in customization