Keaton's cowl is more extended under the chin to hide his sagging waddle. In the side view shot when he kneeled, you could see the cowl's chin protruding further than Keaton's, maybe he tried to look down so his chin was pushed in. I wish the cowl's face opening didn't have the V shape around the jaw and chin. The stuntman's cowl in Batgirl had the same face opening as the '89 cowl, that the cut around the cheeks go straight down the jaw. But with the new cowl, it goes straight to the chin creating a bad V shape when the cowl is viewed from the front.