Not sure why no one else has answered, Heidi, but I'll try.

Looking at the area pictured (we can only see half of the property), I would want to downplay the bulky garage wing and focus attention on the lovely entry. (You have done a beautiful job dressing that!)

What if we drew an arc from the garden bed where the dead maple now is (so sorry it died; that's a tough loss!) to the bed around the stone mailbox support, then planted that whole area between the arc and the neighbor's hedge, right up to the sidewalk? A curve of three(?) tall trees there would help balance the garage wing's large mass, and the curving edge of the groundcover beneath would lead the eye to the entry.

I would treat the curbed area with the river stone as a practical place to pile snow, but not as a focal point garden; the focal area would be the large arc of garden beyond the lawn. It looks like there is a stepping-stone in the river rock near the entry; a few others along the length of the driveway could invite interested visitors to cross the rock bed to the lawn to view the garden. I like the idea of echoing the blue-green door/trim color in the driveway edge plants, but I substituted a few very low creeping blue junipers for the blue spruce shrubs that are outgrowing their space and having to be trimmed into awkward shapes. (The roses would stay near the mailbox; they just don't show in this view.)

I kept the arc garden simple: just Gro-Low sumac (turns a nice red in the fall) punctuated here and there with some summer color (more astilbe, landscape roses) and added another large rock near the sidewalk for unity with the far end of the arc. You could do much more if you enjoy gardening.

And I painted the garage door and trim to match the siding, to downplay that large rectangle, and added a tall trellis with a climbing rose on the entry side of the garage to add interest to that tall wall.

A few ideas, anyway.

Thinking not to plant anything at all in the dry creek. If you can expand add smaller stone and lay it in the same pattern as the dry creek. Plant in that area, randomly, and only evergreens, low growing, that will survive your winters.

Te concrete that leads to the front steps, would you be interested in painting that area to differentiate it from driveway? Painting could add some "weight" to the smaller side of the exterior.

It is done with stencils.

Plant more of what looks healthiest in your area, since it’s proven to survive. Your garage door is so very prominent on what looks to be a very attractive house. I would sink most of the budget on changing the garage door, either by painting it or replacing it. You need a brighter, more colorful entry.

It looks like an area with full sun which really gives you options for flowering trees like an Ivory Silk Japanese Lilac. They are good for Zone 4 where I am located so it should be fine for you if you are in zone 4 or higher. They reach a height of about 20 to 30 feet with a 15-foot-spread and flower very nicely in mid to late June.