Navy sleeveless, high neck keyhole, starfish - Banana Republic M

I adore the charming starfish on this sleeveless blouse! There’s a keyhole at the front of the neck that closes with a copper colored button. Nice, thicker fabric that you can’t see through. Dark navy color. One stain on right armpit that to me blends right into the starfish pattern. See last 3 pictures for zoomed in view.