You could find unfinished or clear-sealed wooden pots for the porch and those would “go” with the planters.

Power wash the front stoop, consider an outdoor rug. You can pair annuals in the pots with colors in the rug. If you found a colorful rug with different colors, you can have more “play” with the flowers in the pots.

Something like this ties in with your house color but you can use it for annual flower inspiration:

Pots like this:

Dig Doug, that’s beautiful but looks like a lot of maintenance. I like the wood on the bottom though. Thanks!

Little strips of lawn, as shown between the planting bed and the walk are just maintenance PITA.

some low growing evergreen shrubs under window, a small colorful tree between windows, perhaps a Japanese maple or a wood Arbor and a vine or rose type plant. then natural wood flower pots on porch area.

A lower maintenance option:

Curb appeal requires an understanding of the complete house face in its setting & surroundings, but this is not what the pictures show. The camera is correctly positioned for the first picture and should stay at that exact spot for ALL pictures of the scene. The car should be removed from the drive as it blocks a large area of landscaping. The photographer should take a series of slightly overlapping pictures that pan 180*, from the far left to far right, including the fronts of neighboring homes shown as background of the shots. Then, we could see what's there and how it fits together. Without seeing a complete scene,, all you can get is piecemeal ideas with no one knowing how it all fits together. There should also be one more picture taken from across the street that shows the whole front yard in one shot.

Yardvaark, is this better? The engineered septic is a rather large ‘mound’. Nothing can be done with that. The large empty brick wall is a problem as is the rest of the front. The yard and across the street is lakefront. No houses across the street. It’s a wide peninsula. Thank you!

I would make the entire area under the window boxes a garden bed, not raised, with small shrubs and groundcover. No rock edging unless it is flat and only slightly above grade. Mulch well with natural color shredded bark mulch. Weed as needed. As long as the mulch is maintained, the weeding shouldn’t be a time consuming task.

The blank wall of the house near the septic mound can’t be planted with shrubs since their roots can harm the septic. Find a set of three beautiful trellises and plant a flowering vine on each such as a good sized clematis. Mulch well and plant a groundcover. Edge the bed to keep grass out. If you choose hard prune clematis you can cut back after hard freeze in the fall and decorate the trellises with little lights for the winter.

Unfortunately, the pictures became degraded in the latest iteration ... too dark, half the size of the former and from too far away. Also, they don't extend far enough to the right, so not useful enough to give feedback. But follow the advice of Babs as it is 100% on the money.