On DLRP Magic, it quotes;
"This isn't just any Dragon, either — it's Maleficent wrapped in chains! The Imagineers completely redesigned her monstrous alter ego from the 1959 film taking inspiration from medieval art and folklore from across Europe to create a much more believable, living, breathing, three-dimensional creature."
(Just felt like posting this)
(credit goes to DLRP Magic)