remove the tile panel at the tub wall wrap the stone wainscot on the outside of the shower enclosure just like the first reference image extend the stone so it wraps onto tub wall use the stone in the third reference image instead remove the light fixture change the floor tile to the one shown in the fourth reference image change the tub to the one shown in the second reference image change the tile above the stone in the shower to the tile shown in the fifth reference image change the shower floor tile to the tile shown in the sixth reference image