Hey Kon, don't feel down. If something gets criticized, then it means that there is something that you should look into and try to fix it. Keep what worked and rework what didn't.
The main complaint people have was the writing, it's dull and the characters are not interesting. There should be more of a dilemma going on with the cast in response to their situation; maybe have each of them have their own hang ups and trauma that has them bounce off with the other members? You as the player are just out of the loop as they are, so there should be more involvement with you and your choices. Maybe have you try to help someone but it gets them killed? Do something bad that might help them out instead but at the cost of hurting them more? It's something to ponder on.
My personal complaint is that the sound design is bad. Maybe the tracks could be reworked to be more easier on the ears and unsettling at the same time. Try studying music theory, it helps.
You know, if Phil's interested, he can do a sequel to the stream where he replays the lower ranked games and see how much they improved since.