Brian Ritchie: Negative Space Stars - crease guides
Brian Ritchie: Negative Space Stars - collapsing the offset creases
Brian Ritchie: Negative Space Stars - central triangles
Brian Ritchie: Negative Space Stars - central triangles (other side)
Brian Ritchie: Negative Space Stars - first inversion
Brian Ritchie: Negative Space Stars - central unit completed
Brian Ritchie: Negative Space Stars - central unit completed (other side)
Brian Ritchie: Negative Space Stars - two units completed
Brian Ritchie: Negative Space Stars - three units completed
Brian Ritchie: Negative Space Stars - forming the fifth unit
Brian Ritchie: Negative Space Stars (other side)
Brian Ritchie: Negative Space Stars