Step 1. We draw the line of a stalk, then draw a bowl-shaped curve, then bud petals.
Step 2. We draw a petal in front.
We draw petals sideways and behind, we erase lines which are on external petals.
Step 3. We draw greens under a bud, a stalk and leaves.
Step 4. We start doing blackout of petals. We do shading by separate lines in the direction of veins at petals.
We shade rose leaves too in the direction.
Step 5. Take the curtailed paper with the sharp end, vatu or a slice of a napkin and pound your strokes on petals and leaves to gain monophonic tone.
The lesson was provided by his author and the founder of the site easy-drawings-and-sketches.com