Step 8: Paint on the wand main colour
IMPORTANT: you must use a type of paint that dries waterproof. Ideally use acrylic. The reason for this is that the next step uses a wash which you have to wipe off while it is wet and if you have used a paint that can wipe off for this stage, then when you apply the paint from the next stage it will rub this paint off as well (which is not what you want).
To mix brown use all the primary colours (red, blue and yellow) in varying proportions depending on what sort of brown you want, or one primary colour with any secondary colour (orange, purple or green). Mix in a little black (but not too much) for a darker brown and allow it to be streaky if you want.