Wrist A Wave is symbolized as one of the strongest forces on earth. So strength for one. Also if you read more into it, its about faith, a wave is you against mother nature, you cannot control it, you just have to put your faith into her.
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 womans face. It is very creative in a subtle way.