https://www.udemy.com/course/trees-drawing/
Trees drawing fundamentals and step-by-step videos of drawing process with downloadable files for each sections

What you'll learn
Tree Drawing Fundamentals
Exercise different sketching techniques
Make better drawings with realistic trees
Practicing with different tree species
Practicing drawing with different shapes, forms and textures

Requirements
You should be comfortable using a pencil or a mechanical pencil, and eraser.

Description
How to Draw Trees is perfect for you if you want to learn drawing different trees species. You will see the structural composition of trees, the approaches and concepts that will help your trees drawing look natural and more realistic. I will be talking about the most important things to know when you want to draw trees, some simple rules that can help you make it easier, with a lot of step by step illustrations and videos of the drawing process. You will also be able to download the tutorials and try all by yourself! Drawing trees is really relaxing and satisfying, I am hoping for you to feel it!

This is a great course for beginners, intermediate, or even advanced students who can find something to help their drawing improve.

There isn’t a perfect way to draw a tree, there are millions of ways to draw them. There aren't any straight lines in nature so feel free to draw the way you feel more comfortable with!

However, I want to show you in this video the characteristics of a tree that you need to observe carefully that can help you draw them easily. Because if you have a general idea of the structural composition of a tree you will be able to draw any tree you want!

Learning how to draw trees is also a great way to learn how to implement lights and shadows into your drawings. You wont need any ruler, only you, a pencil and a paper.