Painting a figure follows different rules from spraying an airframe. You need matt flesh tones in several steps, colours for uniform cloth, leather and canvas, and metal shades for buckles and weapons, and every one of them has to tolerate volumes being built up with glazes and a dry brush. Enamels for figures are therefore laid on thinly and worked slowly, nothing like covering a wing in two passes. A face is built outwards from a mid tone, so the paint spends most of its life thinned into glazes rather than used straight from the tin. The pointed sables and small filberts that do that work are in brushes for model painting, and the castings to use them on, from single large figures to vehicle crews, in model figures.