Usually I do this bit of perspective lesson by roughing out an approximate tile in loose one point perspective and then putting in the schematic oval lily pads. This time I made one lily pad and guestimated a tile around it. We then added the rest of the tile ground by estimating. From there we used the tile pond for placing schematic egrets/herons in place. I got mixed up and did not get it unbolluxed. It still manages to show space, even if it is 'wrong'. It gives the idea. Students had only my very errored example to go by for their practice drawings.