1. Deconstructing a Human Figure
Product Design Sketching

2. Figures in Product Sketching
As with human hands, figures are also widely used in product sketching to illustrate the scale, size and operation of a product, as well as its relationship with the user.

3. Types of Figures in Rendering
Human figures in a rendering should harmonize with the style and level of details of the rest of the picture.
Sometimes realistic, carefully-drawn figures are necessary for a finely detailed rendering.
But in most cases, casual drawing with a certain level of detail as an indication is adequate for illustration purpose

4. Skeletal Figure Drawing
First of all, it is important to understand the anatomy of a human figure, i.e. its skeletal structure, proportions, contours and operation angle of individual joints
With that, you may construct different gestures with single-line wire frame drawing

5. Human Proportion The average human is 7.5 heads high.
Most illustrators render it at 8 heads for more appealing proportions
Fashion illustrators even push the limit to 9 heads.
8 heads is easiest to work with

6. Skeletal Figure Drawing
For side and ¾ views of people, identify natural skeletal contours, e.g. raised upper chest, curves of the spine and lower limbs, abdomen curving in, etc.
Identify centre of gravity of the body
For men, the pectoral girdle is wider than the pelvic girdle. As for women, the two are similar in width
Length of human arms normally extends to ½ of the upper thigh

7. Starting with the Basic Form
The basic form is adjusted to differentiate between men and women.
Basic Form

8. Building on Geometries
As most other familiar objects, human figures can also be simplified into simpler geometric forms
Now you may give mass to the wire frame drawing with the volumetric forms
Apply natural body curves to the trunk and limbs

9. Figures in Design Sketches