Gallagher focuses on the intricate geometry of desert flora, layering varying shades of green to build the rounded, sturdy forms of the cacti. The watercolor medium allows for a gentle transparency, where light seems to filter through the plant's surface, highlighting the sharp contrast between protective spines and the soft, petal-like blooms that crown them.

Set against a minimalist background, the composition emphasizes the specific botanical details of these dwarf plants. The pops of orange provide a warm focal point, grounding the piece in a palette that feels sun-drenched and serene, capturing the quiet vitality of a Southwestern landscape without unnecessary distraction.