Smoke under tree

Pen piece.  I thought I would try the olive green fineliner again, as I was quite happy with the sort of ''archival'' feel it gives to the finished work and as with the other work I did in this exact medium, Jj am really satisfied with the completed piece.
I just wish I could buy this colour pen singly, as with this work, I would have even been more pleased to do more work on it, but alas, the pen I have in this shade, is on it's last legs, if it is even possible to get anything else out of it.
But near enough is good enough.