I hope you can afford to put time into it. I was disappointed to be able to buy a nude option for her lower half but not view it to any capacity. Perhaps a way to hover over the bench top and view behind it or a toggle-able viewing window to watch her butt or muffin while she works and emotes, could be a purchase-able upgrade to add. Really love the game.
Theres a mod for that.
Well, the Big Barista Mod isnt specifically for making the lower half visible, but you can use it to do that that by either increasing her scale or changing the position offsets. Be sure to read the ReadMe.
...
Oh, I forgot to update the released mods. I still need to do that. Well, you can still do it with the older version of BB, its just more annoying to do.
Alternatively, follow my Readme instructions on installing BepInEx and then install Unity Explorer.