The game is a bit too jank. I might be biased by the fact that I'm a big JRPG player, but here some of the things I would change.
1. The fights feel too similar, even though the enemy wasn't the same, I didn't sense any difference to them.
2. The camera position when not the players turn is awkward since most of the time you don't fully see the boss.
3. The numbers of skills the characters have is too limited to make the game interesting, maybe a weakness order might of helped with some characters having access to said elements.
But to give you some positive points. I really like the idea of the currency making the boss more difficult the less you have, but also make that currency the way you gain level. I like the artstyle, but I am a bit sad it doesn't show up as well in game.
However, kudos to you for making a JRPG in a month's time.