Seamless Couple Photo Merge

I have separate portraits of two people and I’d like them blended into one believable image, as if we were photographed together. The final photo should look natural—matching lighting, color tones, and proportions—so no one can tell it was composited.

Here is what I need:
• Combine both individuals into a single scene of your choosing (or suggest a suitable backdrop)
• Color-match skin tones, lighting, and shadows for a cohesive look
• Subtle retouching—skin smoothing, minor blemish cleanup, and teeth whitening—only where it enhances realism
• Deliver one high-resolution JPEG and the layered PSD so I can make future tweaks if needed

I’ll supply the original high-res images as soon as we start and can provide extra reference shots to guide placement and scale. Please share a sample of similar composites you’ve done and let me know your turnaround time.