Geometric Block Puzzle With 3 Different Difficulties (Or GBPW3DD for short)

I thought of the idea to make a jigsaw puzzle, so I loaded up Onshape and it was surprisingly easy to create, so I ended up making 3 different difficulties.Easy: 9 PiecesMedium: 15 PiecesHard: 30 PiecesAll of the different difficulties can be assembled on the same board.If you enjoy this puzzle, please leave a rating! it really helps me out. Thanks!