Pointed Stars in Heptagon Ring

A ring of regular polygons has a pointed star in the center. This space can be filled by twist folding one sheet of a similarly shaped regular polygon. The heptagon (7-sided) is selected as a typical example.
A few sheets of paper with print diagrams will be used to construct a variety of stars with different patterns, depending on the choice of folding directions (Yama ori or Tani ori). Only the stars in the center will be created.