Family Photo Integration -- 2

I need a personal keepsake edited using Photoshop. I have a vacation photo that I'd like to use as the background. Trying to clip the family picture into the background of the photo with the castle in the background (want to replace the people who are subjects in those photos) I need a group shot of 4 family members clipped from one picture and added to a different picture for this request.

Ideal skills and experience:
- Proficiency in Photoshop
- Experience in photo manipulation and editing
- Attention to detail for a seamless integration
- Ability to match lighting and shadows for realism

Looking forward to your bids!