Answer: Openness and conscientiousness.
The five-factor model (FFM) is a taxonomy for personality traits. The five factors it includes are: <em>openness, conscientiousness, extraversion, agreeableness </em>and<em> neuroticism </em>(often represented by the acronym OCEAN).
In this case, the fact that Holly likes to try new tasks reflects openness, which is defined by curiosity, and preference for novelty and variety of experience.
Also, because she tries to do everything to perfection, she would probably score high in conscientiousness. Conscientiousness is the tendency to be organized and dependable. It is characterized by self-discipline and planned, rather than spontaneous, behaviour.