Geomagic Squares

A panmagic square that is also 'most perfect' (wretched terminology, but accepted usage). That is, besides rows, columns, and all diagonals, the 4 pieces in every 2 × 2 subsquare will also tile the target (a 4 × 6 rectangle minus two adjacent cells).  In addition, the 4 corner pieces belonging to the 4 embedded 3 × 3 sub-squares are again magic. As in other examples, the snakey black lines trace underlying polyominoes.