A practiced hand at never appearing startled or in any way uncentered, Gus manages to keep his jolt at the abrupt impropriety to a minimal scrape of the pencil across the page. Nothing too egregious, and he sets about building off the mark, working it into the framework of the piece. No need to reply to that. He chews his lip in distaste.

"It's - well, see what you think." Gus turns the sketchpad so Gabriel can see. "I'm a bit out of practice," he says, mildly apologetic, "and you are rather difficult to capture."