hyper-realistic, ultra-high-definition 4k close-up image of happy smile pitbull dog on yellow background

american animal atelier background beautiful black blue breed brown bull bulldog bully canine clean closeup cute danger dark dog doggy dogs domestic face food friendly funny fur glossy happy head hyperrealistic isolated lighting one pedigree pet pets pit pitbull portrait puppy purebred red reflecting short shot small smile smooth soft staffordshire studio teeth terrier ultrahighdefinition vibrant wellgroomed white wide yellow