IMO there is no space for proper sized shutters anywhere. As for putting stuff on the gable I think that would just draw more attention to it. I would save my money and have it removed instead of trying to fix what is just plain bad design.

So you think we should remove the shutters on the right side?

Love that! Any suggestions on the rock? Color/type etc?

Bulking up the posts will help a lot. Use some sort of plinth base, maybe stone, to add mass. Use landscaping to bring color to the left and right hand wings and add large modern planters at the front door. These could be glazed with a color, natural concrete, or other material. Use rounded shapes for these to offset the boxy architecture. Repaint the overhang to get rid of the Brown trim. Match the door, and shutters to the planters flanking your front door. The outdoor lights are too small for the house so I'd change them for larger Modern looking fixtures. Finally add landscape lighting to add a "moonlight" feel to the exterior.

I don't know where you are and what types of rock yards are available to you, but I would look at simple rock with muddy colors that compliment the cedar going on. I wouldn't want to make it too busy with too many colors.

Agree on replacing the light fixtures with larger ones. Here's a sample of a rock base on posts. https://www.houzz.com/photos/vanity-ideas-traditional-exterior-cleveland-phvw-vp~733992

With the colors you have, cedar shakes would be really pretty. Your posts need to be thicker. Stain them the same color as your cedar shakes. Remove all of the shutters & add more height to your landscaping.

No cedar shakes on the gable otherwise it will just look like a big hulking mass. IMO board & batten siding is give the gable a lifted appearance.

The gable is way out of scale with the rest of the house. Bulking up the posts with maybe stone bases might help slightly, but not much. If it's a finished attic, you could put some type of large feature window in the gable to break up the mass, but as mentioned that would just call more attention to it. If you plan on staying in the house, you should probably save your money until you have enough to get rid of it.

Or...leave the roof, remove the siding and rebuild above the house wall, then fill in the gable with some sort of timber frame design in front of a sloped porch ceiling.

Break ot upat the front by creating a smaller faux gable at the entry door only. Use a darker cedar-palette colour on the larger gable and highlight the faux gable with a brighter colour. Add moulding features to the faux gable.

Install roof-color or lighter shingles on the front gable. Beef up the porch posts. Is there a concrete tile walkway from guest parking and owner parking to the front porch? The yard needs some landscape help, including several trees in that huge lawn area. You could add not-too-tall-at-maturity trees in raised boxed beds with annuals around the trunk if you like to garden or perennials if you don’t have time for extensive gardening and weeding. Consult the local nursery for trees which don’t drop a ton of leaves. Select trees which are hardy in your gardening zone. Crape myrtles offer color and a beautiful graceful shape. If you live in an area where fall color reigns, include a couple of maples and/or oaks, allowing plenty of room for their mature size.