I'm not a peach dude, I'm a grown-ass man. A grown-ass man who doesn't make poorly drawn fan art of horses eating spaghetti. Are horses even capable of eating spaghetti? They don't have lips to slurp those noodles. Please learn a little more about horse anatomy (horsnatomy) and re-draw the picture accordingly. Or be an adult and stop drawing horse-art. Your call.
This is for PonyInABox productions. They're whole SHOW is about the Doctor and Twilight and it is stated set in a different universe from the one where Derpy is the Doctor's companion. So don't worry! Derpy is fine and happy with her Doctor!