Photo Realism of mountains, dogs, and people scenes for a book

I want and sample of your work similar to my needs for you to be considered. No generic messages will be considered. Photo realism w nature and animals. I need maybe 20 realistic illustrations of dog climbing cliff, Mts, Me w my large pack, horses rolling off steep trail, dog and bear conflict, other hikers. These illustrations will be based on snippets from my book. I will also be needing a book cover illustration based on the attached photos. I would be needing to see pencil sketches first for initial review, but preferred illustration style is photorealism. See attached file "reference [login to view URL]".