Depth of Field
Shifting the focal point in the images changed how and what you look at in the image. In the first picture, you focus your attention more on the necklaces. In the second, you focus your attention more on everything behind the necklaces. I think changing the focal point changed the mood or meaning of the pictures because the point of the first picture was to only capture the beauty of the necklaces. In the second, the point was to capture everything behind the necklace, but that stuff isn't that important. The focal point changes how the viewer perceives the subject a little bit because in the first, it looks different than it does in the second photo so it could create a different meaning for them.