Well, I believe there should be short reports and long reports. In long ones we tell how every single customer picked characters, how well they worked, which pose they used, etc. That's what we do now in buildings reports.
In short ones we simply tell everything at once. Ie how many customers they had, how many were pleased, income.
I'd rather used race (even Human, which might be a thing in a world with many races) than elements, which are normally not obvious, unlike appearance traits.