I really enjoyed playing this game.
This game was relatable in some areas, and foreign in others, but at the end of the day it left a lasting impact on me, one I won't forget anytime soon.
I liked Jon as a protagonist. I found myself relating to his outlook on a lot of things, and I quickly established an emotional connection with him. I loved reading his thoughts that the various mementos hidden throughout the game unlocked. That character building helped me appreciate him more as a regular dude going the hell of mental illness.
Ollie was a great character, and I found myself wanting to rush through the various areas just so I could speak with him again. His interactions not only helped Jon as a character, but myself as well. It's nice to have someone that can listen and relate to you, (even if he is a fictional character).
With all that this game did well, there are a few things that it could improve upon. I found myself often wishing for a faster walking speed, especially in the larger areas, which brings me to another point; many of the areas felt too vast and without a clear direction. While I realize that this is appropriate as a metaphorical representation of depression, from a gameplay standpoint, it was less than ideal.
I think my biggest criticism is the fact that I found myself feeling somewhat disappointed at the end. This is more of a personal nitpick, but I wish that Jon and Ollie got together by the end, or hugged or held hands or something. They deserve to be happy, especially after the sunset intervention scene.
Regardless, I think you did very well with this game, especially considering it's your first one. Regardless of whether or not you agree with my criticisms, I hope you continue to make games, or update this one in the future. I'd look forward to it.