enhance this image into a photorealistic landscape design while strictly preserving the layout proportions and placement of all elements maintain the concrete wall on the left timber steps and decking in the center and natural basalt rock retaining wall on the right add realistic materials smooth cast in place concrete wall warm toned timber steps large irregular basalt stones planting should reflect icelandic conditions low flowering shrubs hardy roses soft grasses and sorbus aucuparia trees keep the composition minimal elegant and wind adapted overcast nordic lighting soft shadows high end residential garden photorealistic