Dirty Tile Shower to Clean

If you look closely at the lower half of these walls in the photo on the left, you can see the buildup of white soap scum on the tiles.  The photo on the right shows the tile after the soap scum has been cleaned off.

These pictures show the tiled shower pan, before and after cleaning.  I use a heavy-duty alkali cleaner which cuts through the soap scum on the walls.  The shower pan grout did not come perfectly clean, so I applied a colorant to the grout joints which closely  matched the color of the tile.