please, correct my essay.

Art is the production or expression of something which is beautiful or has some special meaning or significance distinguishing it from ordinary human acts of production or expression. Art is not accidental, but is symbolic or expresses a significant message.
On the other hand, the lecturer states criteria which we can use to distinguish abstract art from the crude and simple, yet sometimes charming painting of children. The lecturer says that whereas the child’s painting is a natural and spontaneous creative expression, the artist’s painting is a deliberate and intentional one. Technically speaking, then, the children’s paintings are not art.