If you look closely at the sleeve on the right you should be able to see the multitude of pills. But just in case you can't, here's a close-up.
I wasn't a bit worried though because I have a secret weapon in my knitter's arsenal - the Gleener
Ultimate Fuzz Remover.
This handy little tool gets a rating of 10 out of 10. See the difference between the right and left sleeves?
It changed this sweater from something that looked like it had a wool disease into something that you might actually want to wear. Or touch.
I'd say that's roughly half a sheep she is holding in her hands.