Edward Lesson One from your pen and picture you are no mug or raw beginner and have much to impart to us penmakers. I put no stock in judging contrasted pics such as your pen when spurious reflections can give very false impressions of fit and turning, also the pic is incredible to be admired in every way as is your choice of one of Australias 800 Eucalypt Species the broad brush generic named Eucalypt Burl. Where I worked seems so long ago now was the centre of excellence for scientists who wrote the definitive book on Australian Eucalypts and having photographed so many of the identifying items leading to publication enabling positive naming ie the tree parts themselves the branches, fruits, blossoms leaves etc etc I personally am loathe to believing most of the hurriedly given names of so many pen blanks.
Welcome to the highly respected group of competent pen makers that exist on this forum from over here in Australia where I wish the winter was over right now.
Kind regards Peter.