Photographs and Spacing Dilemmas

The first piece is nearly finished, with the drypoint being the only part left. However, when I finally saw the two pieces of plexi together, I had a mini crisis as to the spacing. Originally, I was only going to have 1/4" of space in between the two main pieces. But now I'm thinking I might want slightly more space-- not so much that people can walk through but I was thinking 2-3". I thought it might be interesting to give the viewer a peek into the interior and be able to view the photograph and pattern on the inside. Not only to give meaning to all the work I did that might not be seen otherwise, but I think it might add more intrigue to the piece because they have only a small window into a tight space and they must look closely to see inside. Before, they wouldn't have been able to see enough to be interested in making the effort I think. Please give me your input if there are any opinions! It is possible for me to add a 2" or 3" magnet in between the ones that are already attached to create the space. I took photographs of some pieces yesterday for the postcard images, and here's an example of how it would look without the extra spacing:

As for my second piece, I started pulling paper off of the transfer today and will begin making films for one of the circle pieces. If I haven't explained already, this will be a piece that expands outwards on the sides instead of forward and back. There will be a large rectangular piece in the middle with two large circle pieces attached on the sides, one of which will be my grandfather's moon chart. I am also thinking about printing raw, hand written data on the planets on the back of the rectangular piece. Still mulling over ideas for the other circle... Also, there will be a long, separate piece of plexi featuring the full cycle of the lunar phases either printed, painted, or engraved that will sit in front of the piece.

As a reminder, here's one of the films for the chart:

The other film will be my hand drawn additions (what didn't translate into this film, such as lighter pencil marks) which will be in another color.

And for fun, here's a picture of my other plexi piece, and I'm unsure whether or not to include it.