You just need more plants, particularly on the left. Your wandering Jew should spread, so when it does, stick some on the left. I'd get some more sage for the left, too.

I would not do a trench edge, it takes work to keep it looking tidy. The rocks are fine and will look better when your garden has filled in.

You need a lot of groundcover. All that bare mulch is not appealing. The mulch is overflowing at the low parts and needs to be pulled back to show the rock.

I would line up the front of the stones side-by-side and let the inner side be the jagged parts which would be softened by the groundcover.

On the random-stone border vs. a clearcut-edge, for me a twice a year cleanup on the clearcut edge (15 minutes on a small bed like this) is much less labor intensive than trimming along irregularly shaped stone EVERY TIME one mows the grass. YMMV, of course.

My advice wait a year to see how they grow but water needs shoiuld be pretty close to the smae for all the plants in the bed so make sure about that. I agree the random rocks do not belong in landscaping with that house .The grass seems to be very sad but I have no idea about grass in your Zone.

You need a pop of color. I'd plant a Bouganvilla under the trees to the left, let it envelope the trunks and flow along the ground in hot pink blooms.

Maybe I should put the big rocks in the garden bed instead of part of its border?

I like the look of the rocks lining the bedding but think the color is a little too red with your brick. I personally like landscaping to have a more uniform overall look for a more front bedding, so I’d space things out a bit more and have the color of the plants to relate to one another.

Wasn’t sure what the tree was….crepe Myrtle? Birch?

Whoops…. I posted wrong pic.

Emily's idea along the wall is not going to work in that tiny space you have she widened that space and even what she shows will outgrow that space . I would widen th walk space and place some tall skinny planters there if you want greenery , in fact I would widen that whole walkway to be as wide as the entry step. I like the other pic for the bed but no rocks as border but if you must do one then brick Maybe a couple of larger boulders in the bed .