first boss was very easy, I enjoyed the second boss a decent amount, I think the attack where the circles appear below you periodically could be smaller, attack faster, and spawn more often.
Another cool addition could be the boss fight taking place over metal grates (or at least part of the arena is metal grates) that way fire pillars can appear from them and stay there for a while creating a danger zone that you have to navigate around.
A grapple attack with a scene could be really cool, however that is very time consuming. Another thing that could be cool would be debuffs for losing fights, which can be cleansed in some way, be it inexpensive methods or limited resources to do so.
I think this type of game could be very cool as a roguelike where there is a lose condition that you have to restart the game upon reaching, or there being no lose condition and have the character wake up in a dungeon they have to escape to continue the game, you could do both but the lose condition would have to be non intrusive and having to restart should not be tedious, which is much more difficult than not being able to lose.
There is a third option. Going with saves and having game overs is very popular for most porn games but it is a bit lame often, some games spice that system up by having interesting debuffs after the game over. Anyway it was fun I would support your game but I am simply too poor to do so, instead I will pray for your success and I hope you don't have too many people pirate the game. I appreciate your commitment to making a game in an industry that is very unprofitable, I just hope you aren't financially drained from making this game.
P.S this is your game so do what you want with it but do try to make it as fun as possible, even if that means adding an easy and hard difficulty for people like me who love a challenge, and for other people who just want to relax and see the content. (Also I love replayable games)