My Little Pony: Friendship is Magic - Image #411,862

According to the artist:

The Ancient Elements of Harmony… The team who were fought against mad ruler of Equestria – Discord, Lord of Chaos.

From right:
Celestia and Luna – Element of Magic
Fenix the Dragonslayer and his comrade-in-arms Philomena – Element of Generosity
Pallanen Lifekeeper ( ent deer ) – Element of Kindness
Doctor Hooves – Element of Loyalty
Ban Dragonheart ( buffalo ) – Element of Honesty
Surprise ( skeleton ) – Element of Laughter

Could I get an explanation? This looks like it was fanfic inspired and i would definitely want to read this!