Lightening the lines is just making the nostrils seem less noticable. He means the actual lines themselves make the nostrils look deformed. The left (viewer's right) nostril should be darker and a bit wider, the nostril edge looks to connect directly into the bridge of the nose which is basically the look of a pig nose.
His eyes are also too defined in the corners, making them look deformed. His eyelids aren't even existant and his eyebrows aren't complete, making it even stranger. Also, the hair under his lip is too big. It'd be nice to see some texture to the facial hair, rather than black blotches.