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.
"How to Draw Hair tutorial by =ribkaDory on deviantART: by drawing the ends and hairs at hairline close together you can create shading and a sense of form. This will help if you are into drawing people.