Bushido, the samurai code of ethics, was formalized in writing in the sixteenth century and adhered to for some three hundred years. Bushido placed emphasis on certain chivalrous virtues such as loyalty, courage, and courtesy.
Samurai Crests great for graphic or embroidery patterns finally i found it :)
Kamon 家紋 - Japanese emblems used to decorate and identify an individual or family. Similar to the coats of arms in Europe.
Ghost Ronin by marctaro - Marc Holmes - CGHUB
To Deny a Deity (Ukiyo-e Version) by sXeven.deviantart.com
ArtStation - Superb martial arts of the Ninja, Xiaojian liu
samurai, Anima 08 on ArtStation at https://www.artstation.com/artwork/samurai-295d94df-e41e-4406-bdaa-3506a8fea851