This puzzle is based on Vincent van Gogh’s painting called “First Steps, after Millet”. While a patient at the asylum in Saint-Remy, Van Gogh painted twenty-one copies after Millet, an artist he greatly admired. The painting depicts a fenced-in garden behind a house and two parents encouraging their child to walk for the first time.
After enabling piece rotation you can rotate a piece by double clicking/ tapping on it or pressing the space key while dragging the piece.

 

After enabling piece rotation you can rotate a piece by double clicking/ tapping on it or pressing the space key while dragging the piece.