I had to auto enhcance x 2 then used a bit of sharpen.
What is the spiral bit!
Sorry I chopped it off a bit, but it is a 'guess and point' affair at the moment. (Propping the camera up on my baccy packet!)
I will have to have a look for the spiral bit the internet to give it a name.
It's from the left side of the top picture about half way down.