Is your OC a Mary sue?

Elaine Amsel/Ringmaster- Non fandom OC.

Name: Elaine Amsel (Also known as Ringmaster)
Age: 16
Gender: Female
Species: Fallen Angel
Personality: Aggressive and hyperactive. Her personality also shifts, due to her bipolar tendencies and schizophrenia. She seems ditzy and unfocused but she is actually quite intelligent. She is disconnected with reality so she occasionally acts very dreamy.
Appearance: Originally, she had long brown hair and was supposed to grow to average height. But presently, she has short hair (she constantly dies her hair, but she usually has a fiery orange or red) that sticks in different directions and is very choppy, which sometimes burned edges. She has one blue eye and one yellow eye and a splash of freckles. Elaine is very short, about 5'0, with underdeveloped breasts. She is also tanned from the outdoors. Not very pretty, she has a stunning look.
Biography: Her father, an angel or celestial being, roamed the towns of Germany, one of his favourite places to visit. But being the man he is, he visited the slums often to see the prostitutes. That's where he found her mother and fell in"love" or more appropriately, in lust, and after multiple one-night stands, he got her pregnant. Elaine's mother gave birth to her (which her father had no idea about) and raised her for a few years of her life. Growing up with a prostitute mother was rough, but Elaine loved every minute of her life. It was exciting and adventurous, a good distraction from the disorder she was born with. But soon, her father realized of her existence. He took her to what we could call "heaven" or the place where the other angels lived. There, she realized her magical potential. Her father, a weak angel, did not like his daughter though. She had hallucinations that told her to terrorize the other children and she had trouble communicating with other celestial beings. He grew to despise her. But, everything began to change. Her father was offered power and infinite magic in exchange for throwing Elaine out of her new world. He immediately threw her to Earth, tearing her new wings from her back. But wait! There's more! She was (coincidently) thrown back into Germany. There, she grew up, once again, in slums and orphans, stealing, wrecking havoc. She caught the attention of the famed "Circus" a band of supernatural circus freaks who performed morbid acts for the wealthy. She joined Circus and rose to the rank of "Ringmaster" after showing dominance and chaotic behavior suited to the job.
Other:
She's a Taurus, making her unnecessary loyal/stubborn. She was born May 9
Her middle name is Selven, her mother's name.
In her normal outfit, she wears an oversized sweater with short legging and a skirt.
In her Circus outfit, she wears a ripped up purple coat with puffed up shorts. Underneath the coat, she wears a diamond vest and a white undershirt. She also has thigh high patterned stockings and big lace up boots. On top of this, she wears lots of bows and different patterns, creating a confusing yet stylish look.
Elaine's theme is "Crybaby" by Melanie Martinez and Ringmaster's them is "Welcome to the Show" by Britt Nicole.
In the Circus, she acts as Ringmaster (duh) and Pierrot.
She also fights with daggers and has enhanced fire powers.
When she was thrown out, she still kept her magic powers, but it was covered underneath layers of confusion and pain so she had to relearn everything.
Yes, she is super overpowered and has an over implicated backstory. Sorry!

Commentary: She has an interesting backstory, but her design is a bit drastic. I guess since she's a circus goer it fits, but I suggests making the eyes both the same color. She is a bit to overpowered since she was half human and was more powerful than her angel half. But I actually think half-angels and half-demons are more powerful than angels and demons, so, I excuse this. Also, I like her name.

Mary sue level: 19% Mary sue.