Quick study of the face of Charles of Burgundy, on a small canvas board (30*25). It is not finished but needs to dry first. Several corrections to be made: bigger chin, wider lips, eyes, eyebrows, more contrast. Plus shading of hair, coat, background. The collar is for when everything is completely dry.
Note that the colour is not rendered entirely correctly in the photograph. Also, the real painting will be on a panel, which will make it look smoother.