Applying the Three Ink Method

The three ink method of Sumi-e, as mentioned earlier, involves charging the brush with three different "layers" of varying ink/water ratios. I am finding this to be the most difficult part of the Sumi-e process. The water content has to be just right to get the desired tone. I have started using it to paint leaves and blades of grass, relatively simple objects. However, unless the brush is charged properly, then the effect is ruined and it does not come out looking like the subject. Here is a simple comparison between my work and the examples in the book I am learning from.