Seamless Smile Transfer

I have two high-resolution images ready: a solo shot where my smile looks perfect and a group photo where I’d like that same smile to appear. I need the smile lifted from the first image, blended into the group photo, and retouched so it feels completely natural—skin tone, lighting, and facial contours must match the surrounding faces.

Please work non-destructively in Photoshop (or comparable retouching software) and deliver:
• A flattened JPEG of the finished group photo in the original resolution
• A layered PSD so I can tweak or reuse the mask later

The final result should hold up to close inspection: no haloing, mismatched color, or tell-tale cloning marks. Let me know if you need any extra reference shots or lighting info before you begin.