From your pictures, they would appear to be authentic, but that would only be my best guess. The top, bottom and seam...etc. look to be correct. Trying to judge from pictures and not in person, looking at the
batteries close up is always going to be inexact.
It's unfortunate but the number of fakes, and possibly an outward appearance very good fake seems to be more and more common. Other than buying directly from Sony, or a known Sony Authorized Dealer there's no way to be 100% sure.
I'll pay a little extra to purchase from an established vendor with a good reputation. I figure a good 18650 will last for about 1 1/2 - 2 years, the difference in prices will cost me far less than a penny a day. Worth it for peace of mind.