Conforming to the archetype, this Koma-inu sits, facing straight ahead. The facial expression is vigorous and its fangs are barred as if growling. The deft rendering of the musculature visible beneath the skin and the physique are realistic, suggesting that this statue was produced at the beginning of the Kamakura period. 
Audio guide 

As a classical style of Koma-inu, the statue was crouched down and turned his face front. The face was expressed vigorously as if he roars and exposes his teeth. The muscle underneath the skin and the framework were carved distinctly, the realistic expression suggests that this statue was produced in the beginning of the Kamakura period.
 
Shigeki Iwata 
Masterworks from the Nara Buddhist Sculpture Hall at the Nara National Museum. Nara National Museum, 2010, p.138, no.153.