Photoshop Horses into Natural Landscape

I'm looking for a skilled Photoshop expert who can seamlessly combine more than 5 horses into a single image. The final composition will be set against a beautiful natural landscape. This project is for my grandpa. These are all either horses he still has or horses that he has had to lay to rest within the past few years.

Ideal Skills:
- Proficiency in Adobe Photoshop
- Experience in photo manipulation
- Ability to create realistic compositions

Please ensure to include examples of your previous work in your proposal. I would also like all of the horses saddles to be removed.