Jedi Academy is based on the Quake 3 graphic engine and I have to say that you pushed this engine to the limit, it can't be better.
You made a fantastic work with the light effect. In my opinion the skins of Obi Wan and Yoda are just perfect, never seen better.
In the bonus mission ( I guess ) there will be situation where Anakin arrives and kill Obi Wan then Yoda is forced to defend hisself.
( I was only thinking about this soultion for bonus mission, but only you can make the final decision )