I love how even though I've never seen these people IRL, they seem super lifelike to me. They all look happy and warm and friendly, but since you captured their unique traits and features, all of the idiosyncrasies that are individual to each of them, they seem very alive. I love how they all share the same happy emotions, but how we see them through different lenses on each of their faces. His eyes and his smile are a little more restrained, but he looks just as happy as the girl on the end with her toothy smile and her bright, big eyes. The shapes of their faces, their eyes, their noses -- everything is unique, and everything works to show happy they are in their own, individual ways.