The Sand Snakes are among my favorite characters in the entire series of A Song of Ice and Fire. In the books, it's not hard to like them at once. Of all the 'accessory' characters, they'd be the hardest to drop for tv viewing (because unfortunately Oberyn's niece, Arianne, will never make it).
For the sake of simplicity, the Sand Snakes will be introduced to the show as Prince Oberyn Martell’s and Ellaria Sand's daughters.
The producers stick to warm colors for the Sand Snakes' costumes perhaps to put emphasis on the warm climate of Dorne. Just like the true colors of the Ancient Greeks' clothing, the Sand Snakes wear colorful clothes even in their Warrior attire (with the exception of Obara, the hardest of the 3).
So let me introduce each of them:
Obara is described to be long-legged whose stride is always hasty.
Obara was the eldest Sand Snake, a big-boned woman near to thirty, with the close-set eyes and rat-brown hair of the Oldtown whore who’d birthed her. Beneath a mottled sandsilk cloak of dun and gold, her riding clothes were old brown leather, worn and supple. They were the softest things about her. On one hip she wore a coiled whip, across her back a round shield of steel and copper. She had left her spear outside.
As you can see, not a big-boned woman was cast. Well, the show producers are always known to deviate from the original but they deliver well in doing so.
Obara Sand (Keisha Castle-Hughes) will use the same spear that Oberyn used from the 4th season last year. It's emphasized for the show that the spear will be her main weapon.
Nymeria (Lady Nym)
They have not picked anyone better for the role as the actress (Jessica Henwick) looked best-fitted for Lady Nym although she kind of looked different up close and afar.
In the books, Nymeria uses a set of knives which she kept hidden as her primary weapon. For the show, she will be rocking a 6-footer whip instead. She looks too dainty (especially in her handling) in using a whip, but sure does she look nice. Later in the story, she will be sent to King's Landing to join the King's Council and be Dorne's eyes as well.
TyeneTyene is described to be very sweet and gentle and have blooming dimples.
The actress (Rosabell Laurenti Sellers) looks pretty and sweet but she lacks the long straight spun-gold hair and deep blue eyes. Moreover, she'll be using a pair of corrogated daggers in the show when poison has been her primary weapon in the books.
Lady Tyene’s voice was gentle, and she looked as sweet as summer strawberries. Her mother had been a septa, and Tyene had an air of almost otherworldy innocence about her.
So those are the Sand Snakes. For those who don't read the books, there's just one thing I could guarantee to you: You will have instant love for them. I just hope that these actresses will portray them well to make us easily fall for them the characters did to me in words.