Derpy wasn't wall-eyed in PC. Why not? She was wall-eyed when you posted that first picture of her.

Whenever I draw a character, it doesn’t necessarily mean it’s for or designed for PC.

Derpy in the first pic was a Livestream project, and was not my final intention for how’d she appear in PC.

Now, that Derpy would wear glasses to combat the wall-eyes. Her job as a mail-pony requires it. Take them off, and her eyes return to their trademark “derp” look.