Just a thought but see what a narrow navy blue 1st border would look like. It's just me but I like to stop the pattern and then maybe add it after the 1st frame.
There is quite a study on how to know where quilters live - you can tell it by the way they choose their borders. No kidding. Just like the Amish - different solid colors and patterns per region. I don't have the info on that any longer but it is quite interesting.
I like your quilt - that blue and brown with the white is so calming.