I'm definitely really impressed by the atmosphere as well! I love the art and the colors, and especially the feelings it evokes along with the music. It's kind of a mystery but not too serious.
I felt like it was really easy to miss clues. Like I played it a couple times and thought I found everything, but then looking at your screenshots, I see there's a bathroom scene. So I went back again and tried to find it and finally did. I think it was hard to see that door because the lighting was pretty dark in that area.
I guess the end also feels kind of satisfying, or I'm not sure if I'm doing it right. Is there a right answer? When it asks you who the killer was, it just slides away regardless of what you picked, so it kind of left me wondering if what I said was right or wrong.