Painting Winter Woods

Using the above photo for reference, I made a light pencil drawing starting with the aspen tree trunks in the foreground. I paid close attention to their angles and spacing since they would determine the composition of the drawing. As I added the trees behind them, I focused on capturing the feel of the main shapes, lines and shadows.
Next, I used masking fluid to preserve some of the most important branches. Once the mask was dry, I blocked in the shadows in the background and some of the greens of the tree boughs. Then I focused on one small section at a time, paying attention to negative space, to create the smaller branches. Whenever I got stuck (or stale) I wandered off to another section and then went back. This first layer helped my subject emerge, making it a little easier to keep track of which branch belonged to which tree or how a branch might continue after another crossed in front of it.
Once the basic composition was defined, I added more layers to make the darks darker and to add more depth and detail to the branches. To finish off, I exagerated the colors and saturation level in the tree trunks and shadows to create more interest.