First of all, I want to say I love the feel of the game. I think you really nailed it. I loved the fact that when you draw the sprites, they are actually used in a game build haha that was really fun to see. And I think having mini-game like this was an awesome addition.
I wish I could finish the work, however, the puzzles were a bit too confusing for me :( I read previous replies to get through (I also tried dragging the files inside the void), but after that I got stuck after completing Flappy Bird.
But it's comletely normal, you said it's your first time designing a narrative puzzle game, and I think it shows amazing potential!! All these things are done through trial and error - and well, the game jams are a perfect opportunity for some testing haha
Overall, awesome job!!! I loved all the little details you added, I think you're very talented.