I am busy sketching the Mona Lisa using pencil and charcoal (unfortunately I cannot add the picture). I used pencil to do her face and head in the beginning and then used charcoal to start doing the dress. The problem I ran into was that the dress was way darker than the head because of the use ofcharcoal.
Now I need to make the head darker as well, to match. Is there I way I can do this? Is it even possible? The detail looks just like the original but now the 2 different tones on the artwork make it look pretty crap.