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Going to paint bottom a grey color and porch white

I would skip the shutters…

You have nice, wide trim on your windows. Rather than put shutters on this house, I’d invest in landscaping for more charm.

You have a nice large front yard. You may want to search for images of xeriscaping for your planting zone for ideas that use native plants that don’t require a lot of care, and also reduces the size of the areas to mow.

Here is an article that explains some design principles to consider when installing shutters on the exterior of a home, and why some of the pros on this site will sometimes encourage homeowners to consider doing without shutters: https://mariakillam.com/shutters-or-not-10-ways-to-decide/

No shutters

Shutters are an integral part of architecture and are not suited for your windows. Shutters are not decoration and choosing "faux" (vinyl, attached to the siding), would be a horrible addition to the exterior.

Here is an example of the correct install for shutters.

I think you need landscaping that comes up taller to fill in the space under the windows. Rather than shutters you could try window boxes on the two to the left and the one on far right. Just make sure they are big enough to look nice. Ideally deep and wide enough for a plastic plant pot to be set in is what I’ve learned.