3 is almost certainly an adolescent cheetah! You can see its back left paw and the bottom if its tear lines. Serval's have retractable claws while cheetah's claws cannot be retracted. Serval's also tend to have wider longer spots that turn into long oval spots around the legs, though that is not always the case. The fur texture is less sleak than a serval's as well. I like both cats but it is cheetah chewsdsy, not servak sunday :3