Begin by establishing the ground line –NOT on the very bottom of the page and then draw two trunk lines on either side of the middle. The oak tree is wider and to shade the tree, we’ll preserve the whiteness [lightness] down the middle of the trunk and later, we’ll further darken the outer sides of the trunks.
Some of the branches are behind and thus, the front branches overlap the back ones.
Do not draw each leaf. Draw fluffy clumps of leaves–almost like small clouds draped on top of various limbs and branches.