Cool project! Instantly, my favorite feature of your house is all the windows, so I'd want to highlight those. Below is a crude drawing, but what I suggest is:

a light color (light blue-gray?)) under the eaves/roof trim.

Cedar or a fun color on the vertical siding section around the windows.

a darker color (medium-dark blue-gray) on the rest of the body

Garage doors to match/balance whatever you chose to do around the cool windows, cedar or fun color.

Terrible drawing coming up...

Love this house! It is crying for the right colors to bring out the details.

Some inspiration

I did not get where you want balcony? Over the garage?

Thanks! Yeah just a thought to break up the flatness of the front of the house.

I definitely would not add a balcony. The form and repetition of the existing windows are the strongest feature of the facade.

Nice home.

Would definitely do an arbor over the garage -- but not a balcony or deck. Would want a row of windows along the top of the garage doors. Paint the garage doors and all trim around them the same color as your siding. You want your front entry to be the focal point of the front of your home -- not have the entrance and garage competing for attention.

If you like the dark trim around your garage doors, you could replicate that basic idea twice with the two sets of three upstairs windows. Otherwise …

Definitely would not want multiple colors and/or stripes on the exterior of the house unless one of those colors is either black or white as fascia and window/door trim. Perhaps it's the nearly flat roof but, in my (non pro) opinion, the wide colorful stripes some are suggesting beneath your upstairs windows make the house look like a business property painted with its corporate logo color.

What is the size of your front stoop? about 6'x6' or 8'x8'?

Since you mentioned a possible deck: You could build a series of square decks -- deck/steps -- in front of that front stoop leading straight forward from your front stoop until the last deck/step enables you to take one step to reach ground level -- level with the driveway -- likely at about where your guests will park their cars.

Or, you could adapt that basic idea simply by creating a series of square raised areas held in place with and outlined with either brick or stone or pavers -- rather than creating wood deck/steps, you'd have a multi-level sidewalk with planter space on each side.

Alternately, you could still build the square deck/steps down to a level beyond your fence and create your deck in front of the existing fence, perhaps adding a green fence in front of that.

Before creating a lot of flower beds that require a lot of attention, know how much time, effort, energy and money you want to spend on your landscaping on an ongoing basis.

If liriope will grow well in your planting zone, it makes a good outline for a sidewalk or driveway and requires little care. On the side of the driveway that is nearly level (no retaining wall needed), just create a border with a row of buried pavers with their tops ground level behind the liriope and mow next to it.

Holly trees or other shrubs and trees that keep their leaves year round could provide you with a green fence in front of any constructed fence as well as shade for your patio and/or deck.

Another though on the siding itself: Vertical or horizontal or some combination thereof of cedar siding w/natural cedar wood finish would look a lot better than any gaudy colored paint job.

I don't think it is too dark. Like the green on the front door, too. The garage doors are killer. Here are some good dark grays from Benjamin Moore: Gray Gardens CSP-55, Gray Shower 2125-30, Amherst Gray HC-167, and Duxbury Gray HC-163. I think you need a warm gray.

A more elaborate ,extended front porch would help break up the facade surface area and give it some more depth.