The historical buddha doesn’t have a bodhisattva appearance but he may wear a crown. Tibetan crowned (historical) buddhas are usually seated.
13th-14th century, Tibet, copper alloy with cold gold and pigments, is or was at the Khra’Brug monastery, published by Ulrich von Schroeder.
A few of them have an Indian-style crown, as the above sculpture which is nonetheless seated on a Nepalese-style double-lotus base (low base with very wide flat petals arranged alternately).
14th century, Tibet, Shakyamuni, gilt copper with turquoise inlay, photo by Christie’s
Early 14th century, Tibet, Shakyamuni, gilt copper alloy with turquoise inlay, photo by Carlo Cristi.
14th century circa, Tibet, Shakyamuni, gilt copper, photo by Sotheby’s.
15th-16th century, Tibet, Shakyamuni, gilt copper alloy, private collection.
The vast majority are Nepalese-style (or Nepalese-made) figures with their eyes semi-closed, a tear-shape urna and a small five-leaf crown attached with ribbons and decorated with bows. The garment may be a plain or a patched robe, often with an incised hem. They have broad round shoulders and thick arms.
14th-15th century, Tibet, Shakyamuni, gilt copper with stone inlay and pigment, is or was at the Jokhang in Lhasa, published by Ulrich von Schroeder.
A few of them have a small three-leaf crown instead.
15th century, Tibet, gilt copper, Shakyamuni, photo by Christie’s.
17th century, Tibet, Shakyamuni, brass, at the British Museum (London).
Others wear a minimal crown.
Undated, Tibet, Shakyamuni, copper or copper alloy with cold gold , pigments and turquoise inlay, at the Tibet House Museum in New Delhi, published on Himalayan Art Resources.
Undated, Tibet, Shakyamuni, same as above
We will note the many different ways in which one end of the upper garment rests over the left shoulder, and the way the cloth is made to appear thicker or thinner by representing one or both nipples.