In Sawyer, Michigan, where I live, we have the Scarlet Macaw Community Art Center which provides classes, workshops, programs, events and exhibitions for local area artists and art students. It was established in 1994 by Nifodora D. Krumrie.
The Center is located on the main street in the heart of Sawyer.
I have taught classes at the Art Center and here is a step by step sketch that I did for my students demonstrating how I approach a portrait study. This is a sketch of Nifodora, the Director of the Center, and is done using acrylics on canvas. I begin by first do a drawing on the canvas with a marker pen.
It's very difficult to start painting on a stark white canvas, it's a good idea to paint a neutral wash tone over the whole canvas first.
Then I begin to add tones of color.
At an early stage I paint in the darkest tones.
Then I add more modeling and the middle tones finishing the sketch. Color sketches like this can be used as a basis for a larger finished painting. It's a good idea for beginners to do a lot of these kinds of studies to develop their painting skills. can Watercolors or oils can also be used for rendering sketches like this.