That's cool. Were pictures taken every minute?
It gives you a great overall view of how the battle progressed but without captions it's hard to tell what things are. If you do add captions I'd suggest calling out units/brigades at the start, what's in combat and how it resolved, and any other odd ball things (awesome shooting, spells, blunders, etc). If you do add then I'd also suggest freezing on an image for longer as people will miss too much action as they read.