For further reading:
Design Elements Overview: https://paper-leaf.com/blog/2011/02/elements-of-design-quick-reference-sheet/
Line: https://www.designmantic.com/how-to/how-to-use-lines-to-create-an-impact-in-graphic-design
Shape: https://visme.co/blog/geometric-meanings/
Form: https://prezi.com/ainrd0r6oybc/form-in-graphic-art/
Color: https://edu.gcfglobal.org/en/beginning-graphic-design/color/1/
Value: https://www.johnlovett.com/tone
Space: https://www.interaction-design.org/literature/article/the-power-of-white-space
Using Images in Moodle
Use of Line