Putting puzzles together with the pictures up (as all normal people do) is getting boring for her. Within the last month or so, she has started flipping the puzzles over and putting them together without any pictures (Shown below)
Sydney finding the right pieces
As you can see (partially) in this picture she did all 12 puzzles this way today.
This was taken today, as well. She looked really cute (minus the marker on her face.)