I need a book cover designer for a non fiction book

I've written a travel book for Kindle Publishing, based on a 2-week journey through British historical places including a walk on Hadrian's Wall, climbing in Wales, and visiting Churches, castles and other historical sites. The book is a travelogue through British history. I need a cover designed for the book, I have plenty of relevant hi res photographs. Dummy versions of what I want attached - needs improvement! Please quote.