Now let's draw usual pumpkin, a look pupyrchity I (joke). I will not explain everything and so clearly it is visible.

 Such pumpkin has to turn out here, we will a little shade a stalk bottom.

We shade with dark tone where the main lines that there were no such accurate lines, other places are lighter. We do a patch of light. Then we put lines which go in the direction of segments, not evenly.

Let's fix in brains how to draw pumpkin, and fast we will draw the second option of more equal pumpkin. Shading we do minutes two, we put shading with dark tone where there are main lines, then there is a light transition, by an eraser do patches of light.