He used all the elements of art line shape etc
The color is used for to draw the viewer eye to the drill that is holding the ribbon
He used black background and grill placed in front of the back drop that is colorful
hope it helps
Film.
This describes how things are animated even today
Sfumato is the technique of allowing tones and colors to shade gradually into one another, producing softened outlines or hazy forms.
Does the second pert have a picture or something? what is a fresco?
Sorry, Hope this helps
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