I wasn't sure exactly what you were looking for, so here are 3 pics to take a look at. The white plastic "doors" slide to reveal a very shallow storage space where we keep a hand mirror, tooth picks, q-tips, incense sticks and holder (?!), and an extra tube of toothpaste- that's about all it will hold! The doors below the sink hide much plumbing and piping, macerator pump, spare toilet paper and head lube, and some electrical wiring for the shower sump pump, and lighting. The sink through hull has been filled in as the sink drains to the shower sump and then overboard via an above the waterline through hull. We plan to replace the small "countertop" housing the sink, the sink itself and the tap and shower fixtures.
If you want something more specific or close up, let me know and I'll see what I can do. I hope this helps.