It was a massive update and upgrade from your previous game.!
First off, the graphics was really good compared to the last one. It really looked good and also had a spooky vibe too it. I would say it looked a tad bit too clean, but that's just me. Maybe having it a little gritty looking might have made it a little spooky and mysterious. Other than that, the darkness was really good and it made things very jumpy and spooky as the player could not see very far and had to use their imagination to guess what might happen.
And the game was a lot more coherent than the last one. It was a lot more up face in what the player must do. I think it was because the laptops had that bright green light and looked out of place from the rest of the environment. And compared to last game, I think the 'puzzles' were a lot more apparent and made more sense.
The PT style puzzles were good. The ones that stand out to me was the cave (the first) and the house (last one I think). I'm not quite sure if the cave was changing as the player explores it. But it was cool to find out that when you go back to where the player comes from that there is a flood light and things are different.
My one suggestion is to make the caves a lot more linear as there were a lot of cracks and crevasses and they made the exploration a little confusing as there was a lot of things to see and find out. And compared to the rest of the 'puzzles', this was the most non linear of them all and took the longest to complete because it wasn't as apparent as the other ones to complete.
The other puzzles were also good. The house one I personally enjoyed the most as it seemed to be the most well made and refined one and it was a lot more PT styled than the rest of them.
I don't know if there was something chasing the player as they explored the puzzles, but I heard sounds at random times and got super spooked. If that was the case, then well done as the sounds were very subtle but enough to be caught on.
The second puzzle was very linear and wasn't as scary (though I thought something was chasing me and I got scared near the end). I feel like it was because there was a huge open space and that the laptop that the player had to get to was visible from the start itself and there was no sense of danger at all.
Other than all of that, I think that the jump scares were well made! They were placed in the right places and scared me a lot! Though the reason I found it scary was not because the jump scares were actually scary, it was because they were super loud and there was no sign to expect the jump scares at all. So the randomness and the loudness are what made them scary.
And that comes to my last two suggestions. The jump scares didn't have a good build up. I would suggest maybe make the monster chase the player through the house or maybe chase them through the cave and the second puzzle's cavern. Put a sense of danger that the players must face in order for them to be scared and expect more scares. And then build up the jump scares through the music or by making them expect scares by previous scares that they experienced in the same area. Screwing with the players' expectations will heighten the scares as well as their effectiveness.
But yeah, it was a great game overall and you did a great job on it.
It was quite a lot scarier, and you're heading in the right direction for this game! It looked great and was really fun to play and experience! Trepidation has a really good concept and would love to see more of it if you do decide to improve and update this series. Good luck for the future!