Looks great and with oodles of space! One thing you might want to consider is to install plywood or some other board around your lower perimeter then coat it so it's sealed/waterproof and you can then use the garage as a wash bay w/o worrying about water penetrating your floor edges. I did this with an epoxy floor and they ran the epoxy up the lower edges and over the board. I've attached a photo below which shows my lower edges.
Some other ideas for anyone looking at this thread thinking to create a garage, consider:
1. Building a dog wash bay with both hot/cold taps, at floor level. My spouse wanted both a large work sink and dog wash combo, which is shown under construction in the photo. Nice to have the sink as well but it requires lifting the dog into it. So pros/cons;
2. Installing hook-ups for a big screen TV, which are also shown in the photo. That one especially drove my spouse bonkers...
3. If you have stairs, consider creating an access door to the space underneath them (shown in photo) to not waste that space and better hide what you put there;
4. Installing the wiring for future electric car charge stations. Most electric cars charge on their passenger sides however the Tesla charges on its driver side. To get the best of both worlds and not have to back a vehicle in for easy access, you can put the charge station hook-up so it'll work on the passenger side, then also run a second line from that same hook-up location, along the wall so it'll also provide driver side access. Whatever you do, put in separate breakers, 240 amps and the largest capacity wiring so you can install a heavy duty quick charger. Doing all this before the drywall will save you lots of dough and prevent the mess of ripping your walls apart to gain access later;
5. Installing a trench drain that runs almost the entire width of your garage, with the floor gently sloped down towards the drain on all sides. This will allow the best drainage in the winter for all that melting snow/muck/salt each vehicle always brings in with it. It also helps if washing vehicles and provides better drainage when hosing down your floor to clean it;
6. If storage is a problem (like my garage) you can install a pulley system storage rack that will take the weight (for example) of 4 heavier truck tires/rims, with room to put lighter things on top of them. They work well with a 1/2" drill which moves them down/up quickly. They take away your ceiling space so you have to carefully place them so they don't interfere with any future 2 or 4 post lift systems. As well, my installer reinforced the top ceiling to take the weight of 2 such racks side by side, but the 2x6 boards still cracked which required a redo using longer lag bolts and thicker boards in the attic. So make sure it's "over-constructed" for safety;
7. If you've the space and want to go really crazy, consider putting in a washroom. I've seen a few garages with this luxury;
8. Always talk to a company that specializes in outfitting garages. There's no end to the ideas they'll have and they'll be really happy to take your money. One thing I'm still enamoured with is the magnetic tool holder on my workbench wall, which works/looks great for holding all the screwdrivers and other metal tools. A small thing I know but until I talked to the "garage specialists" I had no idea it existed.
Your floor surface is MUCH BETTER than mine and I'm sure they could find something to seal your edges to make them water tight. Something to think about if you want to wash vehicles or other machinery in your "Man Cave" such as the garden tractor I see in one of your photos. Great job!