Introducing my third little one!

A close-up photo shows a black dog lying on its back on a dark gray blanket, with its mouth open in a wide, toothy grin that looks aggressive or menacing. The dog's teeth are prominently visible, and a small amount of blood is visible near its lower lip. A human arm is partially visible on the left side of the frame. The overlaid text reads 'i'm not mad i'm just disappointed'.