I always found the Battle of Geonosis lacked a proper introduction and build up. It kind of just begins very quickly and I feel it could've used more setup and context, maybe even a few shots of the droids launching their ships and armies from the inside their hangers(similar to the Phantom Menance droid army activation) because I'll be honest the first time I saw the film I didn't fully understand what was happening or who was fighting who. The worst thing is that it completely lacks any score, it's mostly silent. While I couldn't give it all that wanted I attempted to at least give it a lively introduction that tries to communicate that a great battle is beginning.
Enjoy!