Basically she was a force sensitive Twi'lek slave girl who Fell rescued. And in a way she rescued him. He, having thought Jaina Solo died (which she did die, but was recusitated a few seconds latter) was having issues... So when he found out that Eina Ven's legal guardian was treating her like a slave, and said she had no intelligence (for she hardly ever talked and was very obedient to him, though only because she thought he had protected her from slavers, and other things. Though when he called her uninteligent she realized what he done)
What was I talking about, right E'ina. So, Fell found out and would have in anger killed the man. E'ina, though, because she randomly whould have force visions, saw him do this before he could and was able to stop him without saying anything, but by just screaming No! in her head. Shocked, and given a second to think, Fell made a bet with the man. If he could prove E'ina's intelligence by the criteria the man had used then the man would let her go and allow Fell to take her to whatever planet she wished. If he couldn't then the man could have Fell's ship, though not the Eta-2 adv attached to it. The man said yes and before Fell could say anything E'ina said, "Does this mean I can see the galaxy?!" Fell says, "If you past the test, so can you talk?" (he asked this to be sarcastic) She replies in her toungue "Yes I can," then in Mandalorian which she learned from a freind, "And in more then one language."
And so the man went to say that it was some force trick but Fell convinced him otherwise. Then he went to leave with E'ina and he asked her where she'd like to go. She said, "Your a jedi, right. I want to be your padawan." Fell didn't say yes, because they were only a couple years apart. But he did agree to teach her all he knew.
A little while latter some one else took her on as a padawan and a year latter she and Fell got married. But then a couple years latter she died at the hands of the Sith.
So I have a confession, I used photoshop to make the headtails more blue. I made her years ago and the clay's water soaked into the head, which is why the head is darker, and the tails desaturated.