No, any brand of coloured pencil can be substituted. The most important thing is to find the closest available colour match to the one I’m using. The process and techniques are the same regardless of which brand you use.

If you’re following a watercolour pencil tutorial using regular coloured pencils, the main difference is that watercolour pencils become more vibrant when activated with water. To compensate, build up your coloured pencils gradually through each chapter until you reach a similar depth of colour.