IMO 4 square houses never seem to look right with shutters, I would be more inclined to beef up the trim around the windows.

House looks like colonial style for me, so shutters would work.

I think your house would look good with the right sized shutters. Either a Shaker or raised panel style, not louvered. Not on the breezeway. The windows are too close together.

Sarah, what is the paint color of the house?

Certainteed Charcoal Gray

Thank you, it is a center hall colonial.