The dark one in female attire and the fair one wearing the peacock-feather crown.
"
Krishna once dressed Himself up exactly like Srimati Radharani, just to create fun among His friends. By seeing this dress, Krishna's friend Subala became very astonished." (
Srila Rupa Goswami in The Nectar of Devotion)
"In order to get close to Srimati Radharani who is upset with Him, Damodara has dressed as a heavely Kinnari goddess, holding a beautiful gold and silver vina. The sakhis then ask the Kinnari goddess what is her name and if she can sing a song to cheer up Srimati Radhika. "She" says Her name is
Shyam Sakhi, since "She's" dark and sings a song that plunges the gopis into ectatic bliss. To reward Shyam Sakhi, Radharani is about to give her the jewel locket from Her own neck. Lalita notices that this "sakhi" is bent in three ways and points it out to Sri Radha. But seeing her beloved dressed up this funny way, She can no longer maintain her anger."
Krishna being dressed up as a gopi.
Cute are the leelas of Lord Krishna.
(Radha and Krishna Dressed in Each Other's Clothes - Lilahava
Can anyone tell me what are these three bends (tribhanga - bent in three ways)?
Well, I found the answer at Google in Yahoo Answers and a very beautiful and a comprehensive answer:
Hinduism...Is Lord Krishna really 'tri-bhanga' or bent at 3 places?
Krishna, Nataraja, Thirumala Kodanda (bearing a bow) Rama Swamy - Vasantotsava seva - Spring celebration, Ganesha