silhouette, contour of the dog muzzle boxer breed of black color on a white background surrounded by lines of various widths

adorable animal background black boxer breed bulldog canine character color contour cute design dog doggy ears eye face friendly graphic guard happy head icon illustration image isolated lines logo mammal muzzle nose one outline pedigree pedigreed pet picture pitbull portrait puppy purebred sad silhouette sketch strong surrounded symbol tattoo teeth various vector white widths