Thanks for the game! I didnt quite finish it all the way, I got all the upgrade though
My biggest advice would be to not hide the upgrades in the option menu! I think a fair few people never got to see them just because they never opened that menu again after pressing start play. I liked the game play loop, everything felt responsive. I wish it would change up somewhere though, or perhaps at some point you get overwhelmed with work. At this point its a bit too realistic if you get what I mean.
I also didnt quite get the touch up document feature. In the tutorial I accidentally skipped a text and couldnt go back, I presume it was explained there.
Overall though, well done. I liked the game, and esspecially the entire presentation was nice!