Holiday Card Photo Editing

I need a skilled Photoshop expert to enhance our family Christmas card photo. We want to keep the original group photo, but need to swap in better individual faces.

Requirements:
- Replace one person and one dog
- Face, head, and full body replacements needed

Ideal Skills:
- Proficient in Photoshop
- Experience with photo manipulation and blending
- Attention to detail for natural-looking results

Please provide before and after samples.

The photo I want to use is the first photo where our son on the chair’s face is covered by the dog (but it’s everyone else’s best photo!). The other two photos are version of his face and the dog’s that can be photoshopped in. I have other options as well if needed!