Front Yard Gardening

I have a tiny yard between my driveway and the neighbors, which had a lot of weeds and little actual grass.  My daughter Manda got me motivated to do something about it, so we expanded the garden into the lawn several feet. Then I had the idea to put in a stacked stone wall, and decided to go even further out into the yard.  This shows our first dig and the pile of stones that was delivered:

A few evening hours of hard work, some heavy rocks, about 1200 pounds of dirt, and some haphazardly chosen plants later, it's looking much better.

I'm going to put an evergreen near the door to disguise the gas meter, and I still have to dig out around the light pole... I have some magic bean seeds to put in there, hoping to get a few vines to grow up the ugly pole and make it pretty. View from the window:

Can't wait til it fills in!  What do you think, should I dig out the rest and go for a two-tiered garden, or try to get some grass to grow?

Hope you all have a great weekend!