Pateco, the tile on your sink looks great, and your new installation of the porta-potti also came out very nice. I like your new soap dispenser and faucet. I picked up an RV faucet off ebay but it is pretty low so difficult to rinse my mouth after brushing my teeth. Yours looks nice and high.
Did you ever end up putting a new mirror in? If so, how did that go? That is on my list as well.
To answer your question, "How have you upgraded your head?" here are some pictures that show upgrades my wife and I have done to our Hunter 31:
<starting.png> This is mostly how it looked when I bought the boat, except in this picture I've already installed the ebay faucet and installed a new Jabsco toilet. Also, everything has been cleaned in this picture. You can also see how I've ran a larger drain hose down in the pan. After this picture I pulled the two polybutylene lines out and fiberglassed closed their two drain holes. Those lines weren't sealed so water was as likely to leak around them and get stuck under the liner. My master plan is to make a new "false" bathroom floor with a drain that will go directly to that new hose I ran, which will go to a sump in the bilge. Notice too there is just a curtain under the sink area. For some reason this boat did not even come with a sink! I bought a stainless one online and you can see that on the top shelf. The handle was also hanging loose which of course also got fixed.
<sink after.jpg>For the panel under the sink, I jigsawed that from plywood on the dock in front of our boat (because we're living on the boat at a marina this is where I do my projects). Since I didn't have the original for a template, I had to take some careful measurements which was a bit tricket. For the door, I eyeballed where the opening should go and jigsawed that out too. You'll notice the door is not quite where the original door is in your pictures (mine is further outboard). Our door stays shut with magnets and spring-loaded hinges which works well. All the plywood was faced with plastic sheeting from Home Depot. You can also see we installed a soap dispenser which is very handy. Instead of wooden trim to finish things off, I caulked the corners.
<Level Gauge.jpg>This was much needed so we can see when a pumpout is necessary without looking in the access port under our v-berth matress... or guessing. I bought the gauge off ebay for about $40. The sending unit that I installed in the holding tank I got for free, but is about $40 new. I could have rigged it to always be on, but didn't want the drain on the battery (even though I'm sure it's minimal) so put in a bush-button switch that turns the gauge on/off.
<Wiring.jpg>We ran a new dedicated 12 gauge wire straight from the panel to the macerator. To turn the macerator on you have to flip the switch at the panel AND flip a toggle switch under the sink I installed. We also ran a 16 gauge wire from the panel that pig-tailed into 5 power wires at the bathroom to power: the level gauge, an under sink light, battery monitor/usb port/cigarette lighter, the latter 3 in our V-berth, but installed from the bathroom side. In this picture you can also see the black/white contact paper my wife put in the storage area which made it look much better.
<Macerator.jpg>This shows the new macerator with new hoses. All waste hoses were replaced except the air tank vent line, which is not clogged and works fine. Also the deck fill port was replaced. You may notice tape on the sink drain. That isn't to stop leaks, but to keep those two joints from falling apart with boat movement. That is a standard home sink fitting from Home Depot and tended to fall apart. I need a better arrangement of fittings as this is over-complicated for a sink drain. Also, you can see in this picture the switch at the top that activates when the door is open or closed to turn on a light under the sink so even at night I can see the y-valve and sea-cocks without effort.
<Y-Valve.jpg>This shows the y-valve up against the hull. It diverts waste from the holding tank either down through the macerator (and out through a seacock) or up through the pumpout. I have it setup where all waste from the toilet goes to the holding tank. I don't have the option to divert directly overboard.
<Toothbrush Holder.jpg>We purchased this off etsy from RusticLogCreations and really like it. Cost was about $20. You can also see the wooden toilet paper holder I installed, which cost less than $5 from Home Depot.
<Light.jpg>Replaced the fluorescent light over the sink (which was broke) with this $14 one off Amazon:
https://www.amazon.com/Kohree-Ceiling-Interior-Lighting-Trailer/dp/B01L8CW9R0 It puts out a phenomenal amount of light and we really like it. The bathroom also still has the circular light in the middle and I replaced the festoon bulb inside that with an LED one. We usually use the circular (not so bright) light, but sometimes you need more light, and when you do this light is just the thing.
<Rear Door Closed/Open.jpg>This was a little touch I did to give us more storage space (this swinging door is bigger than the oval opening was) and give the bathroom perhaps a more finished look. Note that I also have a 3" air duct, pex lines, and electrical lines running along the top of this storage area.
Ok, so those are the upgrades I've done to our head!