Foal

Foals are the second major stage of Pokeponies. Between the eggs and the adults are the Newborn, Foal, and Mature Foal stages. Each have unique poses depending on the exact stage. Legendary foals have an increased growth period due to their rarity. The foal stages change as follows (by total clicks):

Art
There are multiple linearts for each stage. The main difference between the Newborn and Foal stage is that the pony's head is raised up. Some examples (newborns, then foals, then mature foals):

Newborns: