I was thinking that his eyebrows look groomed in the newer picture. Plucked, and possibly trimmed with a pair of hair clipper set at 1/4 inch. Then the 1/4 inch template pulled off, and the clippers used to shave a seperation between the two brows. Sans the plucking part, the clipper technique is a well known way to get rid of that "unibrow" look. After all, the in the newer pic, he looks fresh from a full service barber shop.