On Designing for the Art of Embroidery.
to be a sound rule to fill the spaces, left for you by the arrangement of your main lines and masses, with such forms as shall occupy these spaces, one by one, completely; with such patterns, I mean, as shall appear to have their natural and full development within the limits of each space: avoid the appearance of one thing being behind the other, with portions of it cut off and obscured by what comes in front of it. But in this, as in so much else, an immense deal must be left to the instinct of the artist.
Thirdly: aim at simplicity in the elements or motives of your design; do not crowd it with a score of different elements, which produce a sense of confusion and irritation, and, in reality, prove only a poverty of invention. A real richness of invention, as well as a richness of effect, lies in using one or two, perhaps at most three, elements,
