"A close-up of a red umbrella and a woman in a black dress drawn on a blackboard with white chalk. Emphasize the textured and grainy look of...

"A close-up of a red umbrella and a woman in a black dress drawn on a blackboard with white chalk. Emphasize the textured and grainy look of the white chalk on the black background. Include details like smudges, smears, and wispy chalk dust, as would be created by real chalk. Focus on how the chalk would ...