Great start for a first game, could actually be turned into something cool with some time and work put into it. The low amount of safe points got in the way a bit but I didn't get too frustrated. The mapping could use some work but that kind of thing mostly comes from doing rather than listening and steadily making areas more complex. Part of what makes a good RPGmaker map is nuance to the different object placements -- you could definitely use some stuff to make it clearer that you're going the right way or at least have more landmarks. More stuff you can directly interact with to get some text description would've helped a lot instead of things like the iron gates that just blast a loud sound at you -- this would also help mitigate the more empty feeling of the long featureless hallways; giving you a more lived in vibe.
Mechanically the combat wasn't super punishing and honestly could've used a bit more time in the oven? Like I do appreciate that you have some basics to make wandering around alone less frustrating. The encounter rate could've used finer tuning if only because default encounter rate on rpgmaker is rough.
That being said by no means is this bad, this can definitely be turned into something cool if you actually wanna work on it past the jam.