A way of making your indoor plants as decorations is really beautiful :) I don't like the wood-look though. I think airplants are the only ones which will work. Other plants require water drainage etc.
Raised garden planter boxes on wheels / casters - Size is 2 x 4 each, just over 4 tall with the casters installed on the bottom. Soil depth container is 12 and the bottom shelf has about 3 of clearance to hold drain water trays.