I admire your patience and size of the job!
I worked for 20 years for a Japanese company of Medical products, and had the opportunity to enter in their fascinating culture. Therefore I acquired also some series of Japanese soldiers and samurais, but I never had the courage since retired 10 years ago to attack the painting?
Congratulation for this choice, very very few western painters do choose these subjects.
I am interested to see several characters with more details, perhaps it will re-activate my attempts !!
(Actually I have some here in my Turkish location too!!)...