Your Henry reminds me of the dog in Chris Van Allsburg books. His brother-in-law had a Bull Terrior named Winston that appeared in all of his books. He wrote Jumanji, The Polar Express, and a bunch of other wonderful books, you should check them out!
He looks like Bodger in Incredible Journey, except a lot younger. He is a gorgeous dog. I have never been fortunate enough to meet one of these sweet dogs, so now I can just look at Henry whenever I want to!!!!