Now that you have used markers for the first time the next stage is to practise and repeat the techniques - long flowing lines but on more complex shapes. You should start with the 2D Hand Held Whisk sheet. All of the concept ideas are mixtures of the basic shapes but with curved sides in many cases. The addition of buttons, handles, rounds, air vents etc. will test how you control the markers more effectively. The use of shadows is particularly important as well as subtle use of black pencil to get the depth with the markers.

Below is the example rendered sheet as well as a video demonstration. Below the video are a number of QR codes that can be scanned to see some of the hand held whisks in 3D. This is to try and help you understand the product and where the shadows form.