I, for one, have always been a fan of keeping the architecture as simple as possible. But if flower boxes are your bliss, go for it. Me, personally, I'd give them a pass. They're small, need frequent watering, and can be a bit tough during summer (due to being small and needing frequent watering...)

Certainly feel free to changing the door colors. Even the garage doors, perhaps? Some tone in the stone on the side, I should think. If you want to break the harmony, go ahead, no problems there. Burgundy? Slate Blue? Something tasteful and not too far out of range for that house.

ETA: I rethought that blue on second glance; it's too close to the siding. Grays are out too, obviously. Bad artist, bad artist. :-) Burgundy would clash as well. With those blue-gray tones, you'd either want to match (which I wouldn't care for), pull from the stone colors, or stay white, really. /ETA

I might avoid most vines because...vines. If you do, please choose ones that aren't invasive, like clematis, which won't eat the house (I don't see your locale, which would help us out greatly; for some users, it might show, for me, it does not). Clematis would also blossom beautifully.

I would not recommend some blooming vines like wisteria because, again, edible house. They'll try to take over and require a flamethrower to remove if your environment is compatible.

It's hard to tell from just one shot, but it looks like a flower garden (perennials for minimal care if you like) to the right side of the driveway as you come up to the door would give you attractive flowers in summer and possibly winter interest if you choose some evergreens as well. That will break the colder lines of the concrete and brick (although really, again, I don't find them objectionable).

If you're up for more care, an annual garden instead, or a core annual garden with perennials and evergreens, will give you even more color during spring, summer, and fall while still lending some winter interest. A taller accent like a fringe tree (locale dependent) might look great there as a shape that would really break the lines, too.

Again, so many individual choices depend very much on where you are.

But...congrats on your new home! It's lovely as it is!

I’d start with landscaping. Remove the large shrub in front of the right window. Create a bed that wraps the right corner of the house and anchor it with a tall evergreen. Consider extending the bed partway down the right side of the driveway. Move the two evergreen “soldiers” flanking the front door. You can use them elsewhere in the landscape. A darker color on the front door would give it more heft to match the scale of the house. I’d forego shutters....I think they would draw attention to the smaller upper windows.

I just love your house. I would just make sure all the planting in front of your house is low.

It's a handsome house, so keep it simple, with the changes to foundation planting suggested above. I would cover the siding (which saved the builder the cost of stone) with an appropriate vine. Use the same vine on the garage. But please disregard this suggestion if you aren't up to the formidable task of maintaining them - any of them. You can unify the two types of facade in other ways.

Thanks everyone! I added another photo and more detail to the description... grateful for any/all help!

I’d also pass on window boxes. On certain houses they look charming. But in real life, they’re a PITA. They must have attention every day to keep the plants trimmed and trained and watered. In hot weather, they need watered at least once a day. Every day.

The house looks nice as it is. Improve the landscape a bit, and please do not put vines on the house that cling to the brick. They will eventually cause a lot of damage. If you still think you want it, please read this link. https://www.theglampad.com/2017/04/truth-behind-ivy-covered-houses.html

I agree with the comments above. The house is beautiful as is! I would change the landscape. First one must be beautifully inspired by images. Here is an article on French Gardens. You can find a lot of ideas on there. Look at plantings, flowers shrubs and other potted plants.

15 Beautiful French-Style Gardens - Best French Garden Designs

https://www.veranda.com/outdoor-garden/g1134/beautiful-french-gardens/

Here is a website to view for inspiration. You can buy French inspired items online for your home..

Authentic Provence

https://authenticprovence.com/

You can buy French pots for plants,

fountains, benches etc. They even will ship plants and boxwoods online!

I hope to see posts of your completed project! Have fun!