I also want to point out that Yardvaark widened the walkway by adding a band of bricks or pavers to each side. Especially with a side entrance, the wider walkway helps draw attention to it and make it clear that this area is public space.

It appears that the trees are leaning away from the house due to being plated too close, and they have outgrown their ornamental value. I would remove what is there and start over following a design similar to Yardvaark’s sketch. If there is budget to replace and widen the walkway with a more attractive material, great, but if not, add a course of brick or similar to each side to widen it.

I dissent from Yard and Babs. The pair of fastigate conifers are an interesting and mature element. Trim them (lightly! not beyond the green) to refine their shape to be symmetrically perfect - even trimming the tops to equal heights, and maybe even flat tops if that suits the tree type and style you like (I can't tell enough from the photo). The left one looks like you can pare enough to keep it from encroaching on the sidewalk. To emphasize the entrance, consider an arbor. I do agree with widening the walk if there's room, but I wouldn't jump to follow the conventional formula for a house facade as outlined by Yard. To increase curb appeal, build on the conifer columns by creating a glorious garden, perhaps semicircular, in front of them. In the town on Montclair, NJ where I grew up, there was a house like yours with a side entrance and narrow walk, completely different from all of the rest on the street. It was enchanting.

pondering narrower trees

I also agree that you should start fresh with your landscaping.

It looks like the two trees are not getting enough sun. The foliage should not have that see through effect. Either the morning sun is not enough or it is worsened by the neighbor's tree to the south. Even the lawn is quite thin in areas.

I can't recommend plants but there are many things that will grow in shade if water is adequate.

I like that Yardvaark's design is not overwhelming. Since this is all we can see of the house I think it is important not to hide much.

And I would also agree about removing the narrow conifers (arborvitaes). They are not in good condition and no amount of gentle 'trimming' is going to help that!! emmarene is likely correct about the light levels. They are also far too tall for that position and too mature to level off the tops successfully.

Since we have no idea where you might be, we cannot make any specific plant suggestions. But I would consider replacing the evergreens with a smaller (max 25') ornamental tree(s) at a suitable distance off the side of the house. And they do not have to match :-)