>>527072316
Rosa for comparison, faithful to IV 3D, sexy curvature and sheer details are in tact but she never showed all that much "skin". Someone at SE made a call on Rydia's design though, they weren't going to send them a sexy leotard Rydia as reference >>527071231

So maybe it's a combination, maybe MtG has guidelines and said no to Rydia and forced SE to submit them a new design.