larryd:
Rather than the power cord down the corner of the wall (as shown), I thought a simple flat black aluminum pipe in the middle of the structure to the floor.
Leave it in the corner and paint the cord to match the wall so the unit seems to be unsupported.
By the way they all look great.
My artistic imagination seems limited to things I can make with card using a Silhouette Portrait computer cutter - not at all Arduino related. Except that I can make card bodies for my model trains that are Arduino controlled.
...R