Now we need to start "boxing" in facial features.
I start with the lips and move my way upard boxing in and referencing every important facial feature including the center of the lips below the nose. You can reference as many areas as you want.
Notice the they eye on the right has two lines really close together. One is the horizontal center line and one is the bottom of the eye. In this image it looks like I drew two lines by accident but it is details like these that help capture a subjects "true" face.
Once complete with this we move on to transferring the "grid" to the actual charcoal paper. NOTE: most charcoal paper has two textures. One side is smoother than the other. My rule of thumb is that when drawing male subjects I always use the roughest side, and use the smooth side for female subjects. It is a very sublte difference in texture on the paper, but it can make a big difference in your portrait. You don't want women looking like they have stubble.
To transfer the grid I first draw a vertical center line and then draw a horizontal center line.
I know it's hard to see. Now I use the compass and reference the lines on the original image and transfer them.
Always mearsure your lines from the base line for horizontal lines and from one of the side lines for vertical lines. But always use the same line as a starting point.
This is a 1:1, becasue I took the exact measurement from the original image and transferred it. If you wanted to double your image size you would simply take the initial measurement from the original image and then place the compass on the drawing and with one tip needle as the starting point. Then "twist" the compass one more time and mark where it lands. You have now exactly doubled the original measurement. Do this with all reference lines and you will have an exact 1:2 scale of the image.
When complete you have the finished grid and are ready to start freehanding the facial features.
This is how I layout my portraits. I know it may be too technical for some. But if you get tired of proportions not exactly turing out right then you may want to give it a shot.
That is all for now. When I return I will have the initial sketch complete and will have started on the charcoal.