Oh what have we done to seperate from each other. I wish we would stop this war. Have you ever stop to notice all the blood we shed with blisters? Have you ever stop to notice these two sad crying sisters? Ahhhhhaaahhahaaaaaaaaaaaaaaaaa. Ohhooooooooooooooohoooohooooooo. (Earth Song)
The statues of ponies holding up the ceiling reminds me of Cronicles of Reddik. Great movie...Any way, i'm guessing that this is some kind of scene when Luna and Celestia find out there sisters or something?
No, not really. I (author of that fanfic, and here is the post with it - [link] ) didn't watch avatar... But, maybe i will, someday.
Those alicorns - two of them are the parents of princesses. Others are just common alicorns that live in the Three Rivers Valley (place i made up for them, and in my head-canon Cadance is from there). And alicorns are not ponies, they are completely different race, like elves in common fantasy.
They are not princesses yet, and they live far from all other ponykind, not interacting with them. Not interacting yet. But events of this fic leads them to separate from their parents and friends, and became pricesses for ponies.