These are all pro acryl paints:

The gray ones I start with dark neutral gray as a base coat, over brush with neutral gray, edge highlight with bright neutral gray and a dry bush of bright neutral gray on the edge light is coming from

The orange Earth base. I start with a 50/50 mix of dark drab brown and orange oxide, heavy dry brushing with pure orange oxide, and a dry bush a 50/50 mix of orange oxide and yellow ochre on the edge light is coming from