Right. Like Da Vinci did? The guy in the circle.

[He spreads his arms out to their full span, loosely pointed at the fingertips, as if for emphasis.]

Human armspan fingertip to fingertip is equal to their height. So maybe the wingspan on a gargoyle does the same thing horns to tail...or something.

[He pauses, then glances away quickly, with the tips of his ears turning red. His nerd, much like his calf muscle, is showing.]

That's what you meant, right?