The traditional way of learning to color pages was to draw and then color however in this day and age children have drawing books with pre-drawn pictures that they can color. Description from onlycoloringpages.com. I searched for this on bing.com/images
Simple sheet that can be worked through with a pupil to help identify their strengths and the things they enjoy or feel good about. This can then be shared among staff or displayed on their workstation. Plain design with room to personalise with a self portrait.