IMO the only problem was the cowl. Obviously it was a too big for Keaton's head. In some scenes it looked kind of bad. The cowl was too thick and it was literally covering half of Keaton's eyes. The Returns version was a huge improvement.
Since we're on the subject of lighting; I always thought Batman looked beast when they made Batman's eyes glow while the rest of the face was remained hidden in the darkness. Much like what they did with Bela Lugosi's Dracula.