So to make it easy, these are the Knights of Harmony and they identify the element they associate with in various panels:

From left to right:
Ceridwen, the element of Equity
No idea on the name of the squid/shark hybrid, but they are the element of Acceptance
Danu (a leucrocuta), the element of Loyalty
Balor (a dragon, though may be specific type), the element of Magic
Taranis (a ophiotaurus), the element of Pride
Morrigan (a bird spirit thing), the element of Faith