Buddha Dipankara/Dipamkara, the historical buddha said to have preceded Siddharta Gautama (know as Shakyamuni), is not normally found among Tibetan sculptures. On paintings, both may be seated and displaying the ‘turning the wheel of dharma‘ gesture.
He is popular in Nepal, where he is usually depicted standing and wearing a crown and a pleated skirt-like garment. The above figure has a crowned buddha appearance, which may include a necklace and earrings (but no armbands, bracelets or anklets).
Seated on a single lotus base often seen on 17th-18th century works, this buddha does the gesture of teaching/debate with his right hand and the meditation gesture with the other, neither of which are normally associated with Dipankara.
It is generally accepted that Amithabha has a buddha appearance and holds a bowl while his other aspect, Amitayus, has a bodhisattva appearance and holds a long-life vase. However, we have seen various examples of the two aspects of the same deity being brought together. On this example, the design of the vase he holds doesn’t correspond to those commonly seen in Tibetan art.
Usually depicted with a bodhisattva appearance, Vairocana/Vairochana is identified by a gesture specific to him (see the page on hand gestures in the left-hand column of this blog) but he may also do the ‘turning the wheel of dharma‘ gesture.