I found the time and a slot with no one visiting to sand down the floor and put the polyurethane varnish on. Wow.
It isn't quite so contrasting without flash, but somehow the different trees had some variation, or i mistaked some old wood as mringamringa and maybe it was camphor. Only certain people ask about the differences.
I didn't know anything about parquet floor.
However now it becomes obvious i need to do the dining and living room. I either have to wait 40 years for the 10 year old mringamringa to become hard or find some more wood.