Furion Homepage with awesome double exposure portrait - by C-Knightz Art on Dribbble Minimalist, yet still conveys meaning efficiently. Grey scale is not boring in this instance due to use of graphics and is suitable for the colour blind.
This is how to think about the face when you're painting it. Frederic Fiebig - Facial planes example I am interested by the geometric shapes and brushstrokes that are simple and abstract by themselves but when together create a recognizable portrait.
Tutorial - Curves on Girls by *Ai-Bee on deviantART. Reaaaal good tut on different body types. In her deviant there is also a lot of links to others tutorials for men and women body types. If you draw characters, go see this.