The head and torso of this statue were fashioned from a single block of wood, which was split, hollowed and reassembled in a technique called warihagi-zukuri; crystals were inserted for the eyes. Most of the pigments on the surface are later applications, but the floral design at the left knee of the skirt-like kun appears to be from the time of the statue’s creation.  
Audio guide 

The head and torso of this statue were fashioned from a single block of wood, which was split, hollowed and reassembled in a technique called warihagi-zukuri; crystals were inserted for the eyes. Most of the pigments on the surface are the result of later applications, but the floral design at the left knee of the skirt-like kun appears to be from the time of the statue’s creation.
 
Tomoji Iwai 
Masterworks from the Nara Buddhist Sculpture Hall at the Nara National Museum. Nara National Museum, 2013, p.149, no.146.