Mouth of Flower - Octavio Ocampo This is good art because it is an optical illusion. It could either be just some flowers with a butterfly, or you can also see a woman's face. It is very creative in a subtle way.
Hidden inside this oil painting by Ukrainian artist Oleg Shuplyak lies a second layer of an optical illusion. At first this painting presents two birds but in reality is only one bird and a brach of leaves, Stunning!