super hard puzzle

2011. My mom is good at puzzles, so I made her this to challenge her. It's two separate puzzles, with multiple repeated motifs. Some that repeat in the same position on both puzzles. Like, I made one photoshop document, and once it was finished I left some things unmoved so you wouldn't be able to tell which puzzle they fit (and depending on how the puzzle printing place cut the pieces, they might be interchangeable or at least hard to distinguish). I gave them to her without the lids and mixed together. She solved it.