Uploaded by Solitude 
646x819 PNG 14 kB
Interested in advertising on Derpibooru? Click here for information!
Help fund the $15 daily operational cost of Derpibooru - support us financially!
Description
Artist’s notes:
“Ever since I learned Twilight’s nickname, I’ve had this thought in the back of my head.”
“Ever since I learned Twilight’s nickname, I’ve had this thought in the back of my head.”
professor albert twily.
Blue black and machine
Perfection in steel