Hey, Digby!
She's absolutely stunning.  There's an understated  elegance to the Essence shape and with walnut the more you look, the deeper and more organic it appears. I love the way the curvature of the tailpiece echoes the curvature of the body.

Greetings Digby:
 
I do love a bass with a wonderful walnut top to it.  Yours is outstanding.  I had possibly the first Alembic bass Martin Sims put LEDs on, and it is still listed on the 5th page of their gallery.  They do an excellent job with LEDs, and they really add to the coolness of your bass.  I wish they had a Sims shop in the US.  Thanks for sharing your pix with us and welcome to the club!

Cheers Thomas, thanks for the comments.
 
Ha, funny you should mention it but my Alembic also appears on page 5 of the gallery on the Sims website, on the right hand side, third row up from the bottom.

My old bass is pictured just to the left of yours and also starts that row.  Third picture of it is in the next row in the second position.  What a coincidence!  Here is its thread, for a better look.  Not a lovely bass, like your beauty, but it played and sounded wonderfully.  Note that I removed the brass bar used to put long scale string on this short scale bass - back to its original configuration, so it looks a touch different than in Sims' shots.
 
http://club.alembicguitars.net/Images/411/13368.html?1165501171