Thank you @peekay123 and @ninjatill for taking the time to view and comment. So I thought I was being clever by putting all the traces on the bottom of the board, lol. It does not show in the picture but I do have a ground plane on the top of the board. I will add one to the bottom as well.
Would you suggest I separate the power to bottom and data to top, or just mix and match to achieve the shortest lines possible? As a noob I don’t know if it is more important to have them on different sides or as short as possible. I would asssume shorter is better but I bet there is a sweet spot for both.
@peekay123 in answer to your question about how to attach the asset tracker. My plan was to solder two 18 row female headers to the new board, and two male pin rows to the asset tracker inner holes. The picture below of my sample kind of shows what I had planned. Not the best photo but I hope it gives you and idea if what I had in mind. Ignore some of the layout as this was an older revision print to check the line up of parts. You can see the pins the asset tracker inner holes are sitting on.
Suggestions, ideas, changes, all are welcome.