Hello, I just wanted to chime in here. I think there's two approaches here: short term and long term. Long term would be to fully understand forms (such as a box, cylinder, and ball), understand perspective (how parallel lines converge, constructing believable forms from imagination) and then to apply these to complex forms such as the simplified head shape. This, of course, is much better for your artistic health, but like all healthy things, hard endure with out a little bit of sugar :). Short term (and the one I did) would be to draw the simplified head until you know when the lines look wrong, and use this knowledge correct yourself. You'll start to pick up on perspective and all of that, but your foundation will be shaky. You'd have to repeat this concept with all new objects you learn to draw, and probably waste more time this way. However, this method is much more fun, and kept me motivated where as vanishing points and horizon lines would've made me loose interest. At least that's how I see it. I think motivation is the most important thing, and so that's what I prioritize. You can't draw if you don't feel like it. But let me know what you think. - Dwight