Because the surface of the poppy is not in the same face, he has a sense of form, three-dimensional sense, at the same time, sometimes, the poppy of that pentagram also has a curvature, these many problems, leading to do not easy to do well, how to solve these problems?
First of all, you first need to solve a problem, that is, you first solve the problem of form, you first need to be reasonably accurate modeling, only to do this step, and then consider the other, in the modeling, see them as a whole, so that it is easy to sketch their three self-checking the articulation of the relationship.
Then first draw the approximate new body, when you feel the shape of the quasi and after you go to develop the details.
When the form reaches a certain level, you then start the details, at this time, the form and the details of the sketch together, so that the sketch out of the form and the details will not be detached from the whole, and then also give a person the feeling of the bombardment of the whole.