It's porn! I went on wolf island vacation and all I got was fucked in the ass by 4 wolves. There's not a lot to say really. It's missing... uh.. everything when it comes to the engine. There's click to go forward, and a main menu that's start and quit. I respect writing a porn scenario and then coming up with some loose plot to surround it with o7, but I wish I could change the settings, without a doubt, as others have said, that's the biggest thing missing.
To demand a little bit more, i wish the wolves looked different from each other, they're all rocking pretty much identical faces, body types, and personalities, with some minor details like eyebrows, colors, and heights being the only real difference between them. It's porn first and everything else second, and while the art and presentation do a great job, I think you can elevate it even more by fleshing out the rest (and letting people go back, control the text, the sound, whether or not it's in full screen, etc)
still, a lot of work for a solo dev, and it sounds like you had fun, and I respect any project that starts out with a goal in mind, and accomplishes it