Always Color in a Consistent Direction. This is my first tip. It will make a bigger impact on the end result than anything else and any age can use it! The changes in direction, shown on the red kidney below, on the left side, are what make it look sloppy, even though I carefully stayed in the lines. Coloring in a consistent direction, as seen on the other kidney, is easier on the eyes and ends up looking very tidy!
Coloring Tips and Techniques. First of all _ choose what coloring material you would like to use. There are lots of coloring materials to choose from like: crayons, colored pencils, markers, soft and oil pastels, and many more. It's your choice which media you'll be comfortable in.