Common locations your character will be
Twilight's castle, castle of the two sisters, various places
Title(s) / Rank
Princesses of Harmony
Skin / Coat Color
Not enough space to name each one specifically.
Eye Color
We know their eye colors!
Cutiemark (If Applicable)
Their own individual cutie marks.
Design Description
(We all know their cutie marks, I don't need to describe them out in detail)
Likes
We should all know their likes.
Dislikes
We should all know their dislikes
Detailed Personality
(Okay, not to be lazy, but do I really need to put sown their personalities here? May be I can describe their personalities after becoming royalty.)
Occupation
Princesses of the past elements
Hometown
I think you all know where they're from.
Detailed History
The detailed story of how they became princesses after Twilight will begin soon.
Assets / Bits / Property
They currently share Twilight's castle and they have just about enough treasury in their castle vault.