As I said, and Zelle8 too, you can get those images. It is a bit of a pain, but do the "waifu" route (that means always choose the "earn trust" method) and in the end you'll get to see those images. The luna dream ones are rather easy.I have not seen anyone posting getting most these images without having to rip them from the game folders cause thou Sad Crab youtube & walkthrough claim you can complete the route to get these rewards you can't, trust me I spent a good few hours.
Here it is in game