Each arm with its branches gives rise to a group of leaves. The groups lie in front of and behind each other because a tree isn’t a flat structure. Using a simplified model, I will show you how you can build this up.

Exercise 1:


Step 3: now draw leaves within each group. Let them point in different directions.


A CHRISTMAS TREE
Exercise 2: For a Christmas tree you need a different basic shape than the circles from exercise 1. Start as lightly as possible with the two groups at the bottom center, just above the trunk. Then work in a zigzag pattern from bottom to top, gradually decreasing in size. Then, also starting from bottom, draw the overlapping groups on either side. This automatically creates the typical triangular shape. Finally make the branches more realistic.


EXTRA: Loosely sketch the entire shape of a tree in dark gray with a soft pencil (2B or softer), as a large blob without outlines. Use charcoal for larger sizes. Use an eraser to create lighter areas for groups of leaves, without being too precise. Choose a direction from which the light is coming. In my example, the light is coming from the right. Add extra dark shadows between groups of leaves. Finally, add some details to indicate the shape of leaves, not too regular or too precise.
