For me it’s kind of second nature. I’ve been teaching these techniques for so long I kind of take them for granted.
But yes there is a learning curve. You have to first work with the right reference that has good light and shade. Then you have to be conscious of the shadow shapes. Trying to draw them accurately is totally all about your eye hand coordination.
That’s about drawing on a consistent basis. Keep pushing. You will see improvement. Keep posting to the gallery with questions:)