Super impressive entry, not only on the technical side by making it so small sizewise and making it look so good with the tools you mentioned, but also overall.
I loved the character movement, it feeling so weighty, and with all the little details on the animation, really sold the atmosphere of the game. It looked fantastic too.
I also like the interaction/inventory system you implemented, very simple and neat.
My biggest complain is that it just feels like a small demo (but I dont hold it against it!), and I wanted to explore more, which is great!. Also maybe having some small sounds for background noise every now and then could have helped sell the atmosphere even more too (but I'm not sure if the way you did everything that would be even possible), but thats a really secondary detail.