Looking for ways to keep the original cast iron tub in a rental property. The walls around the tub are rotten behind the green tile. Option one: demo the walls in the entire bathroom, put up white subway around the tub (any particular size carries Retro look without being offensive better than others?) with green marble mosaic as accent and white wall panels around the room to carry the cottage look. Floors would stay - light beige color is showing accurately here.

Option two: remove tile around the tub half way up, replace backing and patch up with white tile if I can find the same size. Here is the rest of the bathroom: