Ok, this might have turned out more into a mini-garden with a bonsai tree in it, but non-the less its awesome. For the box I torched all the sides till they were on fire. Put it out, sanded with some fine grit sandpaper. The bonsai is a Thuja occidentalis ‘Rheingold’ (Arborvitae).
I used some Pilea Blue Moon to wrap up the trunks of the bonsai tree. A mini Cotoneaster in the corner. Some sedums, semperviren to soften the appearance. And a Artemisia Silver Mound bonsai as a small evergreen looking shrub and for a touch of blue.
Path is made out of crushed limestone. I dug the dirt out about 1-1.5 ” filled with the crush limestone and compacted with my finger.