Here our sample of oak leaves.
We draw the curve showing a basis and the middle of a leaf, then we draw a leaf form. It is not obligatory to copy precisely the original since leaves not twins and they can be different, however a visual form.
I decided to draw two oak a leaf, for this purpose we draw a median line of the second leaflet.
Now draw streaks on oak leaves.
It is possible to shade leaves and to draw an acorn and drawing the oak leaf is ready.
Still look how to draw:
1. Maple leaf.
2. Birch leaf.
3. How to draw fall.