Final answer:
The master carpenter is the person with the most direct concern for quality workmanship in the arts.
Step-by-step explanation:
The person with the most direct concern for quality workmanship would be the master carpenter. The master carpenter is in charge of operating the set safely and ensuring that the construction of the set meets high standards of craftsmanship. They work closely with the carpenters, stitchers, and drapers in the scene and costume shops to ensure that the set is built to specification and reflects the artistic vision.