點睛 [ㄉㄧㄢˇ ㄐㄧㄥ; dian3 jing1]
  to dot in the eyes
  fig. to add finishing touch
  abbr. for idiom 畫龍點睛, to paint a dragon and dot in the eyes
  the crucial point that brings the subject to life
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  点睛
  てんせい
  noun (common) (futsuumeishi)
  adding eyes and other finishing touches to an animal painting
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