There's a gallery at the end of the game, but no, there's no anal-only route. Fun fact: I planned to do something like this at the start but I completely forgot while I was making the game (I'm an idiot, I know).
I already started developing my next project actually but I can't tell you the details. If I do, there's an high chance this will start a battle because there will surely be some people who disagree and that will try to change my mind. And I don't really want that. I can just say that quality-wise my next game is going to be much better of this one since I bought a new PC and I finally can set the quality to the maximum (My old PC had only and integrated graphic card with 500mb of VRAM, I think he made miracles with this game!). And most important, there are some things my game will ALWAYS have which are corruption and a female protagonists. I don't think I could ever do a game without these two things. That said, I have the feeling you'll like my next game. Tra l'altro dal nome sembri italiano, quindi nel caso tu lo sia e capisci cosa c'è scritto, bella, se cosi non fosse e stai leggendo con google traduttore, bella lo stesso.