I think the art looks great, but yeah it's not perfect. Either way, I spent two days learning the minimum needed to de-compile the game and change the script. Here's what I've found:
Potions and Lava Cookies are both mislabeled, so you can't buy them, and it also breaks the gift-giving script. Potions only heal 1/4 of your max health anyway, so it's not like they'd even be useful. A side note is that when you get a battle you can't win, you can go backwards, attempt to give a gift, and rollback from there. The battle will be changed, so you have another chance at being able to win.
The script and images to undress them in drowzee mode are there, he just didn't give access to them in game. The blowjob script works, but there is no images.
The script and images to ask the girls to undress are both there, he just didn't give access to it.
With how it'd only take him a few hours to fix and it's been a month, I'm not sure he'll ever update this. The only thing you can get if it's fixed right now is just seeing them naked, and you get to do that anyway at the start of every save. Don't bother playing this after the point you can see them in their underwear.
If you would like to see all the images without having to go through it all, you can go into the game>saves folder and choose a save to edit with an online editor, like saveeditonline. do not change any of the _default parameters. Then, to use the new save file, you must go to the renpy folder and in the savelocation file, change line 288 from:
token = zf.read("signatures").decode("utf-8")
to:
token = zf.decode("utf-8")
You can now load edited save files. You can also do that, save the game, then undo the change to make it stop giving that message.