Creativity
You will see in any Toreador sheet these two Traits. They are central to the Toreador Clan, and so, were put in their own section.
Creativity is determined once for all at the creation. Roll one dice, substract 3, and you have the Creativity rating. Zero or less means zero (and means your character is probably a Poseur).
To create Art, you must first find the original idea behind the creation. the Creation Roll Intelligence+Creativity. The success is ranged from 0 to 7 (different from the standart 0-5), and 3-4 Success is medium. The difficulty depends on the coomplexity of the work (but not always...).
The second roll is the production of the creation itself (writting the right notes, painting, drawing, etc.). The Roll is the suitable Attribute+Suitable Ability. The difficulty is up to the Storytelller (randomly or determined by choice). again, the range is from 0 to 7, and 3-4 is medium.
The final creation is then given two Traits: The Creativity and the Production. Artwork can spring from a totally original concept but can be poorly realized (thus destroying its value), or Artwork can be masterfully realized, but with a boring concept (most computer-based works are considered within this category).
To critique the works of others (one can't critique its own work, as it's assumed she already tried it in the creation/production stage), a roll of Perception+Art Appreciation must be succeeded. Again, the range is from 0 to 7, 3-4 giving a good appreciation of the work (with an error of 1).
While Creativity is a fixed Trait defined at the creation of the character, Art Appreciation is considered an Ability, which can be increased at the standart XP cost.