The detail in the game 9/10
The game audio is 8/10
The visual effects 8/10
The lighting effects 9/10
The creepiness is 5/10
The prediction of jump scare for me 4/10 --- for others it's might be 7/10
The suspension in-game 3/10
The biggest reason for me of the suspense and prediction was scored lower was because I couldn't understand Spanish. Understanding whoever is trying to scare or get you in horror scene and not be able speaking in player's/victim's language as all I heard was Spanish like it was gibberish to me because I don't understand. The game will become more frightening if I could understand what was said to me for my mind to wander and it would give me reasons to be scared or nervous for the jump scared to work on me. FYI, I do think Spanish is a beautiful language and it's shame I don't understand anything said to me when it's spoken to me. How about an English version of your game or English subtitles? I read your developer notes that you are working on that 52 days ago from today.
The audio just needs a clean up of having more a direct approach. As the cell rang, I purposely went in the opposite direction on the other end of the train. The audio is slightly lowered on the other end of the train. But bearly any audio difference when I approach the cell standing next to it.
The reflections were a very minimal or standard amount. The glass windows and the metal bars. I should be able to see my reflection as I don't see my reflection with clarity or at least blurry & know it's me as the in-game character. There is not enough lighting reflection on the seating's materials/texture. Go on a train or bus with the same or similar plastic seating. Use a flashlight or your cell's flashlight on the plastic seating or the sunlight as you'll see the seating will reflect off this type of material.
Add a bit more trash items inside the train. Add more graffiti as in Elementary or Middle School silly or love drawings or sayings like Jose & Breanna with a drawn heart around it on the seat or a randomly doodle from a kid or a message on the wall(s) like "a beware of" or "Never answer phones here" Or "GET OUT OR DIE!"
My Idea suggestion for this game:
How about before the big final jump scare, if the train stops at the same station again with all the lights off in the station beside the signs stay lit, like EXIT, Enter, The Station's Number Sign. The train at a full stop as some of the lights flicker in the train (one or two, but three is the max of flickering lights) and only one of the train's door slides open as the player approaches it. Then grey smoke/fog pour into the train for 8 secs as an ear-piercing scream and blood floods slowly creeping towards the player with a growl from of whatever going to jumpscare the player. The train door closed automatically as the player's surroundings act like everything seems to be normal & going to the next station into the dark train tunnel. As the moment the train moves slowly to leave. The Player saw a body that had slammed on the window(s) that spatters blood with grunt sound from the victim or heard bones snapped broken as gravity pulled the body down to the ground with a growl or evil sinister laugh afterward. And then you take it from there with your imagination.