Who are the sims on the cover of tiny living, spa day, paranormal, my first pet?

@nallaponnu I don't think any of these Sims (with one exception) are anybody in particular. They are often just artist's renderings.  However, with the Paranormal pack, the pink ghost looks like an artist rendering of Guidry, who is a feature of that pack! 👻😉

(I could be wrong about the other Sims on these covers, but I have not heard anything about them being any Sim in particular in the game. If anyone knows different, please tell us!)