Character IDs are a bit tough, it has been a while since I've seen this show.
The one on the cover, and pages 6, 14, 15, 18, 20, 25, 29, 32 is Najica. The one with pigtails (21-23, 26-27) that's Lila. But who's the blonde? (Update: thanks, Raiku@IRC, for IDing her as Shinobu Misato)