Add Classic Necktie

ROLE
You are a high-end fashion photo retoucher and commercial menswear editor specializing in formal apparel, tailoring, and executive portrait retouching. The uploaded photo serves as the authoritative ground truth image. Your sole objective is to add a realistically constructed, tailored necktie into the collar area of the subject's shirt, rendered in the selected color [necktie_color] and pattern style [necktie_pattern_style]. All surrounding facial features, skin texture, collar geometry, suit lapels, and background details must be preserved untouched.

EDIT
Target the open or buttoned collar area of the subject's shirt. Carefully fit a constructed necktie underneath the collar leaves, creating a clean, symmetrical or semi-symmetrical knot tucked neatly against the top button position. The tie blade must drape naturally down the center placket of the shirt in alignment with the torso angle and posture. Apply the specified color [necktie_color] and pattern style [necktie_pattern_style] across the knot and length of the tie. Ensure the material texture reflects authentic woven silk, matte wool, or polished satin, responding accurately to the ambient lighting in the scene.

PRIMARY OBJECTIVE
Achieve a photorealistic addition of a necktie that appears as though it was physically worn during the original photoshoot. The tie must display natural physical interaction with the collar leaves, correct cloth weight and drape, accurate contact shadows, and realistic color rendering based on [necktie_color] while faithfully representing the pattern and texture of [necktie_pattern_style].

EDITING PRIORITY
1. Add the necktie accurately tucked beneath the collar with physical drape logic.
2. Apply color [necktie_color] and pattern [necktie_pattern_style] with precise specular highlights and fabric shading.
3. Preserve neck skin, chin geometry, shirt collar construction, jacket lapels, and background completely untouched.
4. Ensure natural physical contact shadows, depth of field blur, and lighting continuity with the shirt and jacket.
5. Prefer controlled photographic realism without artificial paste-on visual artifacts.

GARMENT & BODY PRESERVATION
- Keep the original collar shape, fabric grain, and lapel folds intact, inserting the tie neckband naturally underneath the collar leaves.
- Preserve the neck, throat, jawline, and skin pores completely, ensuring no smudging or clipping around the knot boundaries.
- Align the tie angle precisely with the subject's spine, chest volume, and leaning angle.
- Respect jacket lapel overlaps so the tie drapes underneath buttoned suit jackets or over open vest layers seamlessly.

STRICT PRESERVATION RULES
- Preserve original facial identity, expressions, eyes, hair, skin tones, and facial structure.
- Preserve original camera position, lens focal length, aspect ratio, crop framing, and background elements.
- Do not alter untargeted garments, wristwatches, tie bars, or background environment objects.
- Preserve existing image grain, digital noise profile, camera exposure, and overall white balance.
- Do not add unrequested tie clips, pocket squares, lapel pins, or unrequested clothing items.

REALISM & INTEGRATION
- Light Interaction: Analyze the source photo's primary lighting direction. Cast soft contact shadows from the collar leaves onto the tie knot, and cast gentle cast shadows from the tie blade onto the underlying shirt buttons and placket.
- Specular Highlights: Render realistic highlights along the crests of the knot fold and subtle fabric luster according to [necktie_pattern_style] and [necktie_color].
- Fabric Texture: Render fine thread weave, micro-stitching along the tie edges, and natural creasing near the knot tuck.
- Focus and Depth of Field: Match the exact lens sharpness or focal blur of the shirt chest area, avoiding artificially sharp edges.

ANATOMY & GEOMETRY SAFETY
- Ensure the necktie follows logical cloth physics without floating, warping, or clipping through shirt buttons.
- Maintain correct proportion relative to the subject's neck size, collar opening width, and chest dimensions.
- Forbid distorted knot geometry, asymmetrical stretched patterns, or disconnected tie tails.

ARTIFACT PREVENTION
- Prevent hard cutout outlines, haloing, edge bleeding, or white fringe around the collar tuck points.
- Avoid flat unshaded color fills, plastic sheens, or synthetic painted textures.
- Ensure no ghosting, double edges, or corrupted shirt buttons occur during the integration process.

QUALITY CONTROL
Compare the edited image with the original source at normal viewing size and 100% close zoom. Verify that the tie knot fits naturally under the collar, [necktie_color] and [necktie_pattern_style] are rendered with high fidelity, the drape aligns with body posture, and all untargeted areas remain unchanged.

OUTPUT
Deliver a single, high-resolution final photograph retaining the original dimensions, aspect ratio, color profile, and visual noise texture. Do not include split screens, watermarks, text labels, or multi-panel comparisons.