I would only have one shelf and instead have cupboards above it. Love the tiling. I would put a metal rod below the shelf and hang stuff there; like small metal baskets where soap and things are stored.
Orderly Open Shelves: Three deep metal shelves hold a bevy of laundry and cleaning supplies. A stylish mix of of new and vintage containers makes it easy to find essential kits for each step of the laundry process.