In these shots, i think AFMA is the issue, esp for the top 2 image... the 3rd, focus is (depending on how big they are, how far away you were) very close for arguements sake as far as the plane of focus side to side. The exact mouse part doesn't seem like there may have been enough detail for the camera to determine absolute perfect focus, but all things in consideration, without being there, it's hard to say one way or the other. Like other said, for food shots, especially if done for a client, live view and manual focus is king. Manual focus is a good rule of thumb for most macro shots regardless, although the AF is usually good in most situations, it's just better to have absolute control over the shot. And to answer your question, AFMA is auto focus macro adjust... in your custom settings you can use this feature to fine tune your AF performance if you find it consistently front or rear focusing... I'd use caution with macro stuff as to how it would preform on non-macro subjects, but it is something to consider if you do a lot of these style shots.