I've actually found aeoniums to be very thirsty! They're winter growers, and take a *lot* of water compared to some of the other succulents I have, even other winter growers.
Also, planting them in a well-draining mix makes it nearly impossible to over water them. I hope yours comes back! Those are gorgeous pictures. I think aeoniums may be my favorites succulents (for now).
I think aeoniums may be my favorites succulents (for now). 
