Head tattoo fuijin and raijin 

Thunder and windgod from Japanese folk tradition make this unique tattoo  

Raijin (雷神?) is a god of lightning, thunder[1] and storms in the Shinto religion and in Japanese mythology.

His name is derived from the Japanese words rai (雷?, “thunder”) and “god” or “kami” (神 shin?). He is typically depicted as a demon-looking spirit beating drums to create thunder, usually with the symbol tomoe drawn on the drums. 
Fūjin (風神?) or Futen is the Japanese god of the wind and one of the eldest Shinto gods.

He is portrayed as a terrifying wizard-like demon, resembling a red headed green-skinned humanoid wearing a leopard skin, carrying a large bag of winds on his shoulders.
In Japanese art, the deity is often depicted together with Raijin, the god of lightning, thunder and storms.