Hand Study - Pen Drawing

Here is my new drawing. It's a study of a human. It got a little bead on its wrist and there's also a small ring on one of its fingers, the thumb.

As the hand drops down, you can see the movement of the veins on the back of the hand.

I made this drawing with a blue ballpoint pen on a cardboard paper using scribble style. You can see my steps below:

Thank you.