It's important because it makes your art work come to life.
Explanation:
Using more light values and/or shading elements creates an illusion making everything come together. Using a light source will just enhance your ability with realistic art pieces.
Answer: He cuts the grass everyday to keep the grass low to create the illusion of the yard appearing larger. By the end of the week he starts the cycle again to make sure the grass doesn't start overgrowing.
Glass crafts are made by heating sand silica until it melts into a liquid state. The melted glass can then either be shaped by blowing the liquid glass or by pouring the melted glass into a mold. The shape and size of the finished piece depend on the tools and method used by the artist.
