I love what you're doing with the game. I love the shape of the feet you have, as well as the detail; bland feet in games suck. I also hope that you have at least some foot content with the other bosses.
I like that Athena isn't too grindy, but you still need to level in order to beat her. However, I would recommend including some more gear to help compensate for the damage. I would also recommend having two different "Defeat" scenes depending on how you lose to her (or the other bosses); I would keep it a simple, non-animated one or add in a grab scene where she forces her foot into MC's face. Adding the scenes might also compensate for time due to damage taken between scenes, but it still isn't bad.
I also feel like I wanted more with the Mysterious Mrs. O. in the magic shop.
Keep it up!!! Looking forward to more!