This one became tough, and I feel it needs a much better consideration of values and edges. Looking at it, I feel that some of the brush strokes were off-mark and it looks underdeveloped, and lacking in the real 'Wow! Detail'. I think I was aiming for a rough time limit to prevent me from going too far where I shouldn't have been focussing... and also to allow me to get on with everything else I want to do!
However, I shouldn't be allowing mistakes to remain if I can identify them. It's more important that I persist in fixing what is wrong, rather than diverting myself away or thinking it's just 'ok'!