http://dig.photoharmonies.com/ may assist you having better photos of your friends and family.
Pequenos detalhes tornam o desenho mais realista.
Getting some practice with posework, starting with sitting/kneeling (studied from life). Holding a steady pose, stabilizing a clipboard, and drawing all at once is kind of a challenge, but hey-- go...
male planar - Google Search
planes of the face for artists - Google Search