Art Challenge: The Changing Light of Day

Shadows are key to creating the illusion of light in art. Identifying the light source is crucial for understanding where shadows and highlights will appear. Whether the light is coming from the side, above, or below, the position of the light source will dictate how the light and shadow fall on the subject.

Artists must consider the direction, intensity, and color of the light. Identifying the light sources will help you choose where to place the highlights and shadows of your object, making it appear more realistic.

This is a challenge I included in my December Nature Journaling with Steph lesson. I’ve made the printable lesson available free to members but the full instructions can also be found below. Enjoy!

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Art Challenge: The Changing Light of Day

Challenge: Explore how natural light (sunlight) at different times of day changes the appearance of an evergreen tree.

Materials Needed:

  • Nature journal or sketchbook

  • Pencil or pen

  • Colored pencils, markers, or paint (optional)

  • A watch or clock to track the time

Instructions: Visit an evergreen tree at three different times of the day: morning, midday, and evening. In your nature journal, sketch how the light changes as the sun moves across the sky. Pay attention to where the light source (sunlight) hits the tree and how it casts shadows. Notice how the shadows change in size and shape throughout the day.


Nature Journaling with Steph is a monthly membership subscription that explores the art of nature journaling with a new subject each month.

We’ll explore different elements and principles of art through tutorials, exercises, challenges, and experimenting with a variety of mediums and techniques. I’ll also include some of my resources to help inspire and expand upon the lesson.

On top of the regular monthly lessons, you’ll have access to the Nature Jounaling Guide, Phenology Wheel Guide & Template, How to Draw Collections, and bonus lessons. All for just $5 each month!