A former ninja of Konohagakure, Orochimaru left and created his own ninja village, Otogakure, in hopes of destroying his former home. During his time in Konohagakure, Orochimaru distinguished himself as one of the village's most powerful ninja. However, his desire for power led him to obtain a means for immortality by transferring between different host bodies, including Uchiha Sasuke due to his powerful genetic heritage.
Never mind that we can hardly see the cosplay; I think just posing with a real live snake is enough to impress anyone. Thanks to Sarah for sending this in!