Azrog and Spydra who appeared in the episode "The Return of Orko's Uncle" were, by far, two of the most visually interesting villains to have appeared in the He-Man series. It is no surprise then to learn that both characters went through numerous designs! Here is one of the earliest conceptual designs for Spydra. As you can see, she is a vastly different-looking villain! I have to stay, while I do prefer her final design, the spider motif on this character's costume works.
(click on the image to see it at full-size)