Thank you so much for playing and for the feedback! We're working on ver1.1 to fix most of the issues you mentioned. The biggest one is that you need to interact with the picture to get the new clue. And now after you get the pieces together and fix each pic, the game auto interacts with it. I think the biggest issue was that we clearly show the clue in the pic, so players thought "oh, I got this" and went ahead to investigate the place without actually interacting with the picture first, we're updating the game as soon as the jam ends : )
The inventory should be straightforward to use, just move the magnifying glass with the arrows and then interact on the pieces or pics with Ctrl. if that doesn't work let me know and we'll check it out!
We do plan on expanding this game/story, so make sure to follow us to get the latest updates! : D
I'm playing your game right now, will rate it as soon as I finish it!