Hahahah Peter so, you are in France and you buy Spanish Olive wood...???:wink::biggrin:
France has plenty of Olive trees also, all the Mediterranean has these trees...!
On the first pic, I though that you had used 2 difference pieces of the Olive wood but then, the second pics shows a match, with the third pic showing a darker top. I'm glad I saw the second pic, as I din't thing you would be using "unmatched" pieces but, Olive wood can provide lots of surprises, from grain changing as it is turned (as you experience) to colour changes.
I wonder if the bottom piece has a darker half, also...???
I also like the way you chamfered in "V" groove the 2 ends that connect to the middle ring, that's neat...!
As for the finish, I don't recall the finish that you normally use but, if is CA doesn't look as glossy as normal, did you cut the gloss slightly or you are using some other finish...???
Very pretty pen, made with one of my preferred woods (I bettcha you didn't know that, huh...???:biggrin
PS: Seems like, everyone is in the "Olive wood mood", good to see...!:wink:
Cheers
George