make the green walls a pine darker green add azelas in the twp planters at the entrance of the larger builing add low shrubs in front of the front stone on each side of the front of the large building that are a row of shrubs about two foot wide add blue sky and clouds add bronze tinted glass to all windows make realistic view the space in front of the sidewalks is a concrete parking lot the brown column features at the entrance to both buildings is corten steel panrls the low stone is a grey brown mix of cut field stone