Kentucky Derby Dress: Who Wears It Best?

Hey guys, I just bought this dress recently but I haven't decided which of my OCs fit it best.  So I wanna know, which of these mares here do you think looks best in this dress?
Poll where you can vote: pegasusjedi.deviantart.com/jou…


The dress is adopted from  Rosegold Spring Gala Dress Auction [CLOSED]

The Purple pony on the far right is adopted from and I'm still thinking of a name for her.

Pearl Point Belongs to _{actually we agreed she's probably mine at this point but I'm still linking anyway}

( _{As with other adopts I'll be linking the sellers again when the OCs first appear in a story piece.} )

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EXTRA MISCELLANEOUS INFO

So just recently I got to thinking about doing a yearly art piece to celebrate the Kentucky Derby.  Its an event that only happens in Louisville and has an entire two weeks worth of events leading up to it.  The Derby itself is a big horse race, with thoroughbred colts of about 2-3 years of age racing in it and is the first of three races as part of the Triple Crown event.

So, the reason I thought about doing a piece for this is cause I'd like to dress up some of my OCs in Derby festival fashion, which typically involves big extravagant hats!  Shortly after I decided on this I spotted this dress and thought, "Oh my gosh that is totally a Kentucky Derby Dress!"  So I finally decided on buying it. . . Only I made a minor error.  

See I normally only get an adopt if I have a definite purpose for them, or in this case a pony to wear it.  I didn't definitively find a mare amongst my OCs that really fits this dress, so now I'm just putting the dress on the ones I think might look good in it and see what they look like.

I really like the design itself so I'm debating changing the colors of the dress to fit Azalea if I can't find one of my OCs to fit it as is.