Meet Deadly Beauty :3
 
She is a model, with an interest in horror and dark stuff.
 
The black and red eye she has is a glass eye. She lost her left eye when she was a filly, due to a medical condition. She was going to get a normal replacement eye, but she wanted a custom oneto help show her love for dark and edgy things.  
Her love for dark things and horror, along with her fake eye, got her a lot of bullying during her childhood, and she didn’t have many friends due to others thinking that she was a “freak”.
 
One day when she was a late teen in Canterlot, she caught the attention of a photographer, who was looking for models to help sell a lineof goth style clothing. Seeing her fake eye, he asked her if she would mind if he took some pics of her in the clothing. She said yes, he took the pictures, and she made a couple of bits form it too.
 
Realising how nice it felt, she contacted the pony again, and asked him if he had any other photo’s he needed taken, and he got her round for more. Word eventually spread about her, and soon she got a lot of people wanting her as a model.
 
She mostly models for fashion, and has her own fashion line as well. She donates most of her earnings to Charites and hospitals for disabled kids.