Which decorating technique is suitable for all four letter styles?

The technique of pen and ink drawings is suitable for all four letter styles due to its versatility and the specific characteristics of calligraphy. This medium allows for fine line work, shading, and detail that can enhance various styles, whether they are modern, traditional, decorative, or simplistic. The varying thickness of lines can be effectively managed with pen and ink, accommodating the nuanced strokes required in calligraphy.

Furthermore, pen and ink provide a consistency in texture and can adapt to different letters and flourishes, enabling artists to incorporate unique elements into each style without losing clarity or legibility. This adaptability makes pen and ink a favored choice for embellishing or complementing the intricacies of all letter forms in calligraphic work.

In contrast, techniques like watercolor washes, pencil sketches, and block printing may not translate as effectively across all letter styles, limiting their application in the same way pen and ink can be universally applied.