Line another baking sheet with parchment paper; set aside. On a lightly floured surface, roll out the remaining dough to an 1/8-inch thickness. Using leaf-shaped cutters, cut out 12 leaves (we made seven larger ones for the outside edge and five smaller ones for the middle); transfer to the prepared sheet. In a small bowl, whisk together 1 egg and the heavy cream; brush over leaf cutouts, and transfer to the refrigerator.

Line chilled pie shell with parchment paper, leaving a 1-inch overhang. Fill with pie weights or dried beans. Bake until the edges begin to turn golden, about 20 minutes. Remove parchment and weights; transfer to a wire rack to cool completely.

In a medium bowl, whisk together the remaining 5 eggs, the brown sugar, butter, corn syrup, molasses, bourbon, vanilla, and salt. Stir in the chopped pecans. Pour filling into the cooled pie shell; arrange reserved leaves and whole pecans on top of pie.