That chicken is too, too cute! I agree about the eyes tho. If you have any of those straight pins with the ball on top, try using two white pins and moving them all around the eye - if that works and you like it, then just use the other end of a child's paintbrush and dip it in acrylic paint.
You can make it look like an eyeball if you put the dots close together or it will look like a highlight if you put them up higher.