This game has a lot of potencial, you should definitely work on it in the future, the animation is really good and smooth, the gameplay is really fun to play, but a lot of things are missing, as you said you didn't had time to complete, even though I'm probably going to say something you had in your mind to put it in the game, but I'll say anyway.
- Add a start menu - Let the player use their itens in the inventory - Expand the map and maybe add some NPCs deppending what is the storyline your doing it. - More variety of itens, after battle or collectables from the ground. - Maybe when you expand the map, you could add biomes with different itens, enemies and music. - Other options in the attacking mechanic, add buff attacks and things like that. - Itens you can hold to boost stats, like armor and weapons, but you could make something different.
Those were the ideas that came to my mind, of course, is up to you if you are gonna add them or not. Also you did a very good job with this game. Keep the good work!