18 Sections

 1. Linear
 2. Radiating

 1. Linear
 2. Protruding

 1. Linear
 2. Cluster

 1. Exposing
 2. Radiating

 1. Exposing
 2. Protruding

 1. Exposing
 2. Cluster

 1. Reflection
 2. Radiating

 1. Reflection
 2. Protruding

 1. Reflection
 2. Cluster

 1. Radiating
 2. Linear

1. Protruding
2. Linear

 1. Cluster
 2. Linear

 1. Radiating
 2. Exposing

 1. Protruding
 2. Exposing

 1. Cluster
 2. Exposing

 1. Radiating
 2. Reflection

 1. Protruding
 2. Reflection

1. Cluster
2. Reflection