Gold is running

My OC, Her name is gold star but every pony call her Gold and she running just for the joy of it.

Link to speed drawing: [link]
Link to fanfic/story about how Gold lost her leg [link]

Edit 1: Changed the background.
Edit 2: Corrected the top part of the mechanical leg.
Edit 3: Change the neck a little

About GoldGold is a Pegasus that isn't good on flying, she is better on running. Her cutie mark is a light-blue hummingbird, thats represents mainly agility, but also love for animals. She lost her leg when she was a filly. After some adventures she gets a mechanical leg. So even if she had some hard times, she is still a happy pony that cares for others. She doesn't want to be treated differently, so she often trying to hide her mechanical leg with a sock that is made out of fake coat, that is the same color as her real coat.

Gold's mechanical leg have a function so she can shoot half of the leg off, there are a wire connecting the two parts and th