A cozy living room filled with numerous cats lounging on various pieces of furni

A cozy living room filled with numerous cats lounging on various pieces of furniture, like sofas and chairs. The room is warmly lit, with bookshelves, a coffee table, and a rug on the floor. The cats are of different breeds and sizes, scattered across the room. However, hidden among them is something that doesn’t belong—a small dog, subtly blending in with the cats, lying on one of the cushions. The room should look natural, with the dog not being immediately obvious, creating a slight visual anomaly that takes a moment to detect.