How do you feel about coral? Not necessarily beachy, but like Palm Beach. It would look pretty with your furniture and art, from what I can tell.

I'm really liking this dark blue right here. Is it too dark?

The blue is pretty, but you may have a little too much light in the room for that particular blue. What about BM Glass Slipper?

The color looks good, but, it really does not look beachy at all. Here is a link, that may help you pick a beachy color. https://www.completely-coastal.com/2011/01/room-color-schemes-from-shore.html