The lighting of Broken Sword is an amazing sight as the sun spills in through windows in the morning causing the character's shadows to stretch across the floor and walls. The lighting and shadowing is more than just pasting a black shape on the floor or wall behind the character. The dark shadows gradually blend into the surrounding color making the shadows have a real-life feel to them. The character models and landscapes are also full of detail making each location a joy to explore, just to see what new graphical wonder you will see. And this high graphical power doesn't seem to slow down the framerate or cause choppy display problems.
The music is fair -- nothing really special, actually. As far as the voices are concerned, the acting is great, but the delivery is bad. The sound clips are choppy and stop short, making the conversations hard to follow at times and making you wonder if you missed some crucial bit of information that you need to get past some puzzle.