"Quality," Farrah answers flatly. He could leave it at that. He could wait for the man to ask for elaboration... but no, he'll answer. No need to get too greedy.

"A better portrait-" he pauses, flicks his gaze back and forth between the braid and the drawing a few times, then sighs and turns his pencil around to carefully erase a couple lines so that he can draw the braid in its new position. "...requires more time."

The implication is of course, that he should want a good portrait, thus should remain. There's barely a face on the page. If he gives up so soon, all he'll have to show for it is a pretty good rendition of his hair with some vague ovals for his eyes, a triangle for his nose, and a curve where his mouth should be.