Rainbow house number. Small glass "mosaic" tiles used for numbers in a background of "smashed" white porcelain tile. Scale contrast = piece size small in number, larger in ground. Dark grout toning with numbers.
Great idea to make a pathway with rock footprints imbedded in the path. The rocks could represent kids, grandkids, friends, family, those that have passed away or the steps you have taken in the right direction to change your life. The meaning could be endless.