This is a contest entry!
This pretty filly is a rare pony known as an 'ore pony', or a metal pony, much like the crystal ponies.
She is copper colored with unidentified metal plates covering her body. She has a leg which is missing one of it's copper plates, so you can see all the gears inside of her. She has a copper and brass horn and brass colored eyes, and her cutie mark is three gears: A brass gear, a copper gear, and a steel gear, and her talent is building and inventing things. (Her horn and wings are proof- She's biologically an earth pony.)
Her wings are made of feathers welded onto metal frames. Her hair is fine steel that has a silvery sheen.
I hope you like her, she took a while! <3
Edit: I added more highlights to her metal plates and her hair.
Edit Edit: I WON?! :'D Wow! Thanks a ton!
( All the sessions are because my web browser is annoying, so I have to end a session and restart oekaki every half hour or so)