Thanks to grimmly's advice I somehow managed it to take a snapshot from one of my videos.
Pictures help me so much. Of course I see that the pose improved. My fingers were never so close to the toes like on that picture. Here is the history.
I realize that to reach the toes is nice, it feels even funny to feel the little toes from that side. When I want to take the elbows to the floor, comme il faut, I have to reach my verse, minimum. This is at least another year of body work.
The elbows drift apart from each other. How to bring them together is still a secret. Visualization shall help.
Then comes the challenge to come up from this pose. I'd say, I need minimum 3 more years for this. I enjoy the trip.
All in all, I'm happy as I see progress.