Study 1. Depth of the image. Foreground, between basic and background. Use of natural colors and some contrasts between them, like cold-warm contrast, quality contrast and the use of light and shade.
Study 2. Same subject “no depth”, surfaces dominate here. They are solid and has just outline.
Study 3. Dramatic expression. Composition with lots of lines and contrasts in colors. Bright-dark, cold-warm and quality contrast. Image reflects concern.
Study 4. Organic expression with soft colors. They are harmonious and reflect tranquility. There are mostly warm colors which has been used “quality contrast”. Round shapes..