Possible Clues:

• Picture isn't commonly secured by nail gun initially
• Eager to grasp essence of big picture
• Van Gogh's "The Starry Night," e.g
• Using an easel
• Suffering can lead to glorious work of art
• Yearning to hold one work of art
• Eager to capture one in nude perhaps
• Job for tradesman desperately keen to secure one
• One eager to go outside is putting coat on
• Picture headless cartoon character in short episode