Well this game is a little interesting. The early game is pretty alright with good enemy balancing, and the first 2 maps are dense with detail. My problems start when going into the temples however. I can tell you used the RPG Maker MV dungeon generator, which I personally already object to using since the layouts it makes tend to be pretty boring, but I think you could at least improve the room layouts by making the rooms smaller. As it is now, the dungeons are large rooms with a whole lot of nothing in them. I recommend making smaller rooms that are densely detailed rather than larger rooms that have no substance. This large room issue kinda snowballed into other problems as well, particularly the enemies. I think you heavily underestimated how high the player level would be at certain points, which resulted in me literally getting to the first boss in such a high level that it couldn't do any damage to me. The overworld is also kind of a mess, since it does such little to direct the player in the right direction that I constantly got lost. The story also isn't introduced very well, and the writing is overall kind of a mess, introducing characters out of the blue, and not having enough explanation of what is going on that I was just confused the whole time. I dropped the game after the 2nd dungeon, mostly because it was at that point that I realized you made a medium length RPG. It's not bad to be ambitious, but I think it was a bad idea to make such a long and complicated game like a medium length RPG for a game jam that lasts 2 days. I think this game could've turned out a lot better if you instead made the game 1 dungeon with maybe a boss at the end, and focused on making that slice the best you possibly can, rather than spreading yourself thin by trying to make a whole RPG within the strict time limit. As for how to improve with RPG Maker, I heavily recommend watching videos from Echo607 since she gives a lot of good advice on how to make an RPG maker game feel unique, and look into the MV plugins by YanFly since they can help add some oomph as well. I also recommend watching this video by 2kliksphillip. While not a professional tutorial, the video gives a good baseline understanding of RPG balancing and even some core game design principles. I also recommend paying attention to the intricacies of how RPGs are balanced when playing some on your own. Pay attention to how they guide the player, and how each mechanic works in tandem with one another to form the experience. Most of all though, I recommend you keep at it. This game isn't the best, but we all have to start from somewhere. Just keep making the games you want to make, and improving as much as you can, and eventually you'll get the hang of it. I can tell that a lot of passion and effort went into this game, and I think if you can channel that more effectively, then you'll have something great on your hands.