The oxeye daisy pattern on shields is out of place in both 15w33c and 15w34a snapshots. The first picture shows that in snapshot 15w34a the oxeye daisy pattern is up one pixel higher than it should be. The second picture shows that in snapshot 15w33c the pattern is one pixel to the right instead of in the middle and the third picture shows what it should look like.
Mark as duplicate to MC-87658 which deals specifically with the center offset