My process always starts with a sketch, either pencil or charcoal. It's this tactile experience that opens me up to receive this "gift" from Creator.
Charcoal on paper - preliminary sketch
Oil Underpainting - the next step in the process. It's like a sketch right?
Sketching oil-school on tracing paper. The graphite on the paper has a nice tactile feel.
Sometimes I use tracing paper when working out a composition. This allows me to see the different elements, move them around or remove them without needing to redraw. This is Fat-Bear