The orthogonal lines in the work merge at the vanishing point. In a perspective drawing, the artist uses parallel diagonal lines which meet and diminish to a vanishing point. These lines are called orthogonal and create the perspective and a more realistic view. The vanishing point offers the painting a three-dimensional look.
The three primary colors are red yellow and blue, so the only option that would work would be yellow! I hope this helps! :)
Music a global phenomenon. People around the world appreciates music even though they don't understand the lyrics (because of the language). Music is a universal language. It makes people unite. For example, the recent famous song from Disney called "Let it Go". People around the world made different translations just to sing that song. I also agree to what sanaybrown posted, it's a way people express their feelings.
You can find it in art history books, Wikipedia
Gouache painting- can be used as a trendy background for posters, cards, invitations. Natural pattern, CORAL colors with golden powder, mixed paints. Paper marbling is a method of aqueous surface design, which can produce patterns similar to smooth marble or other kinds of stone
