Ty Lee was an extremely EXTREMELY hot female from the Fire Nation. She was responsible for making many male Avatar fans very happy at night. A notable trait of Ty Lee was her breasts... yeah, nobody really cared about her personality.
Also sorry to disappoint you, but if you're looking for naked pictures of this character, they're not here.
Lack a sense of humor? Then get the hell out of here and go read Avatar Wiki's "real" article on Ty Lee.