Could I get some constructive feedback as to why these images were not accepted? Thanks!

Please give the reason for the refusal. I suppose it was technical issues, but the last one could also be IP violation or a missing property release.

All your pictures are out of focus. Most even have no intended focus point.

The 2 last have also chromatic aberration.

The last one has this logo on the paper, well and the handwritten note that could need kind of a property release. It has also excessive noise. And there is no need to argue that you wanted to focus on the note. The ring needs to be in focus to make this a usable image. For a good image, you should have used some more festive paper.