Hey, thanks for the feedback.
I agree. I need to add in a sort of tutorial at the start. I was thinking of implementing an image that breaks down the basic controls, but I haven't finished it yet,
With the cutscene skip, the only one I have set up to skip right now is the intro. (press backspace) If I need the scene to continue after something happens though, It's more complicated to skip it. I've tried a few things, but I'm still working on that.
As far as nudity, there will be a fair amount in the game. Every sprite I make, I make them nude. Then I add clothes over top. 
As you can see with the warrior NPC. Any female character sprite you have seen so far can be nude. In all of their animations.
I may have some lesbian scenes, but it will not be a heavy focus. I don't know if I could write a story around those themes you suggested, and I'm not really interested tbh. Might be some other devs out there though that'd be keen to that.
Saying you would think of implementing an image that breaks down the basic controls, well take your time on that. saying you put eery sprite you make,and make them nude and add clothes over top.Yeah thats a good one
Although you said you have some lesbian scenes, but it will not be a heavy focus and you don't know if you could write a story around those themes I suggested, and you are not really interested , well you could give it a try as an experiment , make short visual game, about an alternate world with only naked women and they do lesbian sex , just give it a shot.
That would be a pretty big time investment on my part, and I'm really only interested in making the game I am working on now. Even a short game takes weeks of work, and that would make Goblin Hole take longer to finish. I have an obligation to my subscribers to work on this game. So I don't plan on working on any other games, until I finish this one.
If this is a game you'd really like to see though. I'm sure there are artist online that are looking for commission work, and maybe they'd want to work with you on this idea. I'm gonna be honest though, that's not something I am interested in doing.