Fun game! I never thought I would get so invested in a game about nonograms, but I just 100% the game, and found myself surprisingly invested in the story! It is really impressive how you were able to design nonograms with such a range of difficulties, but with the designs still looking so cool!
A suggestion: Not all the nonograms that are not visible in the overworld appear in the album, so if they could either appear there, or if you could interact with the object to see what the nonogram was, it would be cool.