I know ponies don't hatch from eggs . . . wait, they don't?
Anyhow, each of these represents a season (spring, summer, autumn and winter) but I will not say which one is which - it's a surprise. In a few days they will hatch and a foal will be born. One of them is an alicorn.
I started to sketch but I wasn't happy with it so I am starting over. This is not something I am used to drawing so I have to kind of figure it out as I go.