Two of the peaches are in the preferences menu, one in the settings tab (the cogwheel tab), and one in the information tab (the "i" tab on the right side of the screen).
The other one is in the "hamburger menu" (the three lines menu) on the top right of he screen when you are in the game, it's at the bottom of the screen and is tricky to click on because the menu like to close if your mouse moves too far from the right side of the screen.
The punishment has to be justified each day or she hides in her room like that.
You want to keep her behavior low by rewarding bad performance with good food, and only light punishments like otk to not raise her behavior too much.
This is an amazingly well polished spanking game. One of the best I've played and it has a great deal of replayability. I rushed through the content the game has to offer in a night, but it's something I can see myself returning to. The various animations in the game are all well done, and the voice acting compliments it all very well.