I've noticed some of the connections too! Don't forget about how both series contain prophecies that a child/kits will be born who will eventually defeat a great evil- Harry defeated Voldemort, while the Three lead the Clans to defeat the Dark Forest. Also, in the ways that Firestar is like Harry, I see a lot of Ron in Graystripe. I think that if we had to connect StarClan to anything, it would be Dumbledore. Both the Clans and the students look up to them for advice and guidance, and ultimately they do everything they can to fight against the coming evil, but by the end they are powerless against it. (i.e., Dumbledore is dead, and StarClan has to rely on the living cats to fight)
I really liked it ^_^

Author's Response: oh yes! I forgot to include direct character references! I was planning to but it slipped my mind when I got caught up in my writing :P I didn't think of the Dumbledore/StarClan one though. Good thinking! And thanks for reading and commenting!