Tibetan sculptures of arhat Rahula, the only son of Siddharta Gautama (Shakyamuni), are few and relatively late works.
He normally holds a jewelled crown at heart level, as above.
This Chinese-style work depicts him with a shaven head and a garment pleated stiffly around the waist, covering the left shoulder and finishing around his waist, the end resting loosely over his left arm. His hands are held in his lap as if to hold a crown, now missing.
We see him here behind an unidentified arhat wrapped in a monastic robe that covers both shoulders, both hands in his lap in the meditation mudra (Chuda Pantaka and Kanaka Bharadvaja both hold their hands this way and have their head uncovered).