Looks good. I have not tried these, but my father experimented. Knowing what he said about it, you've made a good accomplishment. Next step is a five level Chinese ball!
I pulled this one off the lathe yesterday.It is a 12 point star in a sphere.I broke a chunk out while cleaning out some glue.I was able to glue it back in so it's mostly complete.
I learned that I need to use less hotmelt for the plugs and more precision tool handling.