Don’t worry - that definitely will have happened (the photo is a few months old).
They are all really lovely, and hopefully happy, cats. They’re still quite young (just under 1.5 years now), so still very playful, so there’s plenty of playtime with the humans and with each other. They’re brothers, and most of the time best friends, so they normally all hang out together.
They all get a good amount fussing if they’re in the mood for it, especially the silver one, who’s really into his “tummy tickles” or “belly rubs”, and likes to demand them quite frequently.