I am very glad that all of you enjoy the pictures as much as I do. As you say Steve, these bootleg figures are great and the amount of detail they have. The body and the mask of this particular one is very similar to licensed Bandai, even the art on the cards. The darker tone in the feet, I think it is a reaction in the golden color of the paint due to the age of the figure.
Again thank you very much Steve for all your good comments

Very nice boot you got yourself there. Arashi was massively knocked off, producing a great array of figures!

Thank you Andy, I'll try to catch other variants of the same figure of Ninja Arashi.