Here are some studies of different envirionments and, more specifically, different types of forests. Each was made for different educational purposes. The first one is an experiment of different materials; in this case plants and rocks. The image was made to see how these could work together in terms of color and texture.
The second was made monochromatically for the sake of simplicity and to create a particular look. The focus was creating a sense of depth within a dense scene.
The third piece is an experimentation focusing on atmospheric perspective and the use of specialized brushes.