close-up of a bullmastiff dog with a colorful collar in a green outdoor setting.

powerfully distinct eyes adult peaceful front nobody color healthy wrinkles copy space natural pure bred dog wrinkled face muzzle eye wrinkly black mask bull mastiff washington state one bully breed brown off leash adorable cute head expression purebred portrait powerful shorthaired no people pets look friend closeup beautiful animal bullmastiff canine close up photography fawn colored outdoor scene profile wood stumps