I did not draw it. I only colored it in. Please go visit the original artist 
Caspian is the stallion, shown with his daughter Jade and his trusted friend, Duchess. Caspian's mate died not long after Jade was born, so Duchess, Caspian's friend, agreed to foster-mother Jade. Duchess has said that she enjoys foster-mothering Jade, and Caspian also enjoys checking up on Jade while she's with Duchess.
This color-in is based off horses I own (Duchess, Jade, Caspian) on a game called StarStable. No, Caspian and Jade/Caspian and Duchess are not shipped :3
