A full-length portrait of a Zen roshi in meditation, seated in zazen posture within a traditional Japanese garden setting. The scene is intricately detailed, adhering to the rule of thirds and the golden ratio, rendered with cinematic flair. The artwork is a masterpiece in the style of a classical oil painting, enhanced by dramatic lighting that highlights the serene and contemplative mood. The background features elements of nature, with subtle creative touches that maintain the essence of tranquility and balance. The roshi's expression is one of deep concentration and inner peace, adding to the overall harmony of the composition.