What’s more tough than portraits? Group Portraits as that increases the variable exponentially. Not only proportions need to be kept on thin lines, but also an individual face going wrong may disrupts entire portrait, not only that but group photos tends to be smaller and not close-up the way individual photographs might be, adding up complexity.
In past, I had tried only once about group sketches and not really great way, so I had to give it a try again. I been choosing the way to create and refine the outline first before proceeding with shadings and shadings too with one character at once. No fixed rules though.
First trial was with wife’s sister family.