Drawing upside Down

Caroline said nothing is too difficult to draw! If you look at the picture upside down.
By turning the picture you make your brain think in a different way. To start look for shapes, major shapes, in Caroline’s picture this was the rectangle in the middle, easiest point. Check if the vertical or horizontal lines are correct by using your pencil as a reference, you can also use the pencil to measure length and depth of each ‘shape’.
It’s important that each shape is relatively to the next, use your pencil again to check which shapes in different parts of the picture line up with you starting rectangle, this will help with perspective.
Once all the major shapes are positioned, add the smaller detail ‘shapes’ how they overlap each other, some will just be lines. It’s like building a jigsaw puzzle.
Next is the tones, larger areas could be lines or hatching, make sure the tonal values are darker for the shadows around objects, light and dark areas.
Nothing is too difficult to draw if you break it down into simple shapes concentrating how they line up with the other shapes and of course measuring the lines. Keep checking the position of each shape with all the areas of the picture this will help to get the picture positioned on the paper correctly.