One of the best (if not) the best NSFW game I've ever played. First of all, it doesn't need much storage space, secondly, the UI and graphics themselves look nice, and smooth. Animations are good, the playstyle is actually fun, and not hard to do at all.
Overall I hope you continue the development, it's a great game.
I have a few recommendations, if your in for it. It's your choice if you want to implement them.
1. Instead of putting a white backround at the ending of a scene, it would be cool if it's fully animated at the end.
2. More upgrades would be cool to have.
That's all, the graphics are (in my opinion) perfect.
I hope you have a great day.