Underpainting

You bet it does. I swear by underpainting. The problem is folks that see it in a WIP and are not familiar with the process are often shocked and will give you lots of advice on fixing it. :yelrotflmao:

I often use acrylic to underpaint and oil for the top layers. Is that what you are using?

OY Vey Turpentine! Have you tried odorless mineral spirits? Much less fumes.