When to stop?

The struggle over how much to say, the memory, in my ear, of Dorothy Eisner telling me not to model.  The way people like a particular painting that painted itself ... I took my pastels into the room with the loved painting and drew on top of a scan of where I'd got to on this painting in the hope of finding what should happen next, wondering if the loved painting would offer answers. Back in the studio I didn't look at the pastel result as I worked, but it had warmed me up, probably. Later I compared and took from the pastel what seemed to be missing. Still not sure if it's finished.

New beginning colour and shape

Working from drawings, imagination and parts photos I began today with charcoal. It is drawing group Monday but what with the snow and not having the regular car I decided to stay home.  
I began drawing because I wanted to consider the light and shapes. When I finished I realised I'd done what I often do, put a line down the middle of the space.  Not sure why but I thought an ironing board would unify things, create some more complication and create a reason for the woman on the chair. 
This is only a few hours of painting so will come back to it again, and probably again.