1. the person in charge of the overall creative vision or goal of the enesemble

the conductor

Explanation:

A music ensemble is led through a creative vision or goal by the music conductor. Generally there is only one conductor, however if there is more than one then all are led by the principal conductor.

i would say the answer is b. zigzag lines of the leaves. i believe this is the answer because zigzag lines go in different direction while the other options like: the vertical lines of the trees, the dotted lines on the road, and the curved lines of the park benches go in one direction.