I don't own this pony but I may place my winning varient vote on a White Italian Lemondrop.
But here's why I specifically vote on this one. I imagine those over at Italy when they got the pony making instructions saw the original lemondrop and where like "Purple drops of lemon? Who ever thought of that??" So they made a water themed pony Really - she's a one of a kind because it's interesting there wasnt an elemental pony for Water!
What a fun contest idea
I don't know very much about variants and I don't own any but I spotted a pic of one on here I love ! Its a Brazilian pony and it's green and sitting and has Bows on it and rainbow hair. Definitely my fave I have seen yet !
She's a taobao variant who is a combination of white Princess Celestia and Rarity. I adore Rarity's mane and tail colours with Celestia's body, and she looks fab as a unipeg! Rarity's head also goes remarkably well with the Celestia body.. it looks as if it were meant to be. I'd adore to have her!