The blue and white is just striking! I'd do a strip of white flying geese between the two blues, maybe going in two directions <<<<<>>>>> with a square in the middle, where the geese change directions.

How about french braid in the side pieces? It is pointy but different enough to support the broader side panels.

Your mariners compass is gorgeous and I love how you are putting it together. The two blues are perfect! I like the idea of a very narrow white between the two blues, but also like the look of the darks framing the center without additional white. I think you will have to audition it to see which you like best. Either way will be beautiful!

If you want to continue your center to look like a square on point, that can be easily done by putting your center on a piece of newsprint (or newspaper for that matter) and just draw a line with your ruler continuing the line of your white fabric out from either side where you've added the corner triangles till the two lines meet in a point.

Hope this makes sense! I know what I mean!

that does make perfect since. I will have to think about that. I am just sooooo torn on what to do. That is one thing that i hate and love about making my own patterns. oh well I guess.

It's very beautiful what you have done thus far. I love the tone of the colors of blue

I think I would go with the white in that area. The white will let those stars pop out like they are now and they'll also give you good size areas for some special quilting. I would add the border fabric next and do the tiny white piping like someone else suggested.

Gorgeous quilt!!