task replace the street bollards with smaller and slimmer versions instructions identify all cylindrical rust colored bollards along the curb replace them with thinner more discreet bollards new dimensions height 70 80 cm diameter 8 10 cm keep same positions and spacing same material corten steel but less visually dominant strict constraints do not modify any other part of the image do not change textures lighting or materials do not restyle or re render the image preserve 100 of the original image except bollards fallback rule if unable to isolate bollards do not modify the image