Brian - you are well hooked!!! A really excellent job. I recognised the box or should we say Kodansu as soon as I saw it.
This must be the original in the Met museum.
The bottom decoration in your main box is exceptional, and as every, the small internal boxes are a real joy, to make, and to handle. The red in their bases and the fine gold flower are a treat.
A comment on your small internal boxes ................. I have found that putting the register pieces in the lid - your ebony strips, restricts what you can put in the base of the box, as the registers can 'hit' things. Yes, you put the registers in the lid as it requires less timber, and doesn't reduce the internal size so much. But if you put the registers in the base then they don't get in the way of what's in the box when you put the lid on. I found the problem on my box called 'Vietnam box', which I haven't moved across yet. So, on the small boxes in my 'Geisha box', I put the registers in the base. An alternative, but more fiddley is, once you've saw the lid off the box, you then route a lip/register around the outside of the top of the base of the box, and then route another lip around the inside of the lid.
OR, and easier, you can route the lid lip on the inside of the box pieces before you ever glue it up.
I've also routed groves on the outside and inside of the box sides to form the register before gluing up.
As you know I also love Japanese boxes, and this 'box in box' style is definitely on my list of boxes I want to make again - though perhaps not this style now that you've done one! For anyone following you, and wanting some inspiration for this style, here's a link to one of my Pinterest boards which shows a whole range of what I called Covered Kodansu - 'Box in Box'.
