I would go with something close in color to the background of the laundry tile. Using that for all the small areas in question will keep it less choppy.

There are a lot of improvements that could be made to the layout. Consider starting a new discussion asking for constructive criticism on the entire design, but as always . . . WARNING: Posting your entire floor plan opens you up to facts you may not want to know, but should. Be prepared for suggestions that will make for a better design. Keep a thick skin, open mind, sense of humor, and a glass of wine within arms reach. You may not enjoy it, but everyone else will and you will be better off in the long run if you heed well the advice.

I'm going with no shutters, The house has a dark roof and black shutters (which don't fit appropriately, are vinyl and attached to the brick, not the window frame) and it is all too much dark. You house is lovely and deserves better. With the shutters off and your black front door, do black on the garage door. Do the muntins in the windows pop out? You could paint them black.

I would keep the one that you have, (unless of course, it really needs to be replaced). There is the same window design on your bow window, so they do compliment each other. If yours is in good condition, consider just painting it a pretty color to compliment the house.