It helps to blend the selection into the surrounding pixels. Noise filter can create textures as well.
a.
Naturalistic art shows things in their natural form and in their natural habitat, but can sometimes show what something looks like at one time, rather than what is.
George Frideric Handel was well known for is his operas and oratorios, as well as anthems, and organ concertos. For example - <span>Messiah, is the most </span>famous oratorio by Handel (i'm sure you would have heard of it before).