Here is my initial redesign of The End from Sonic Frontiers. I wanted to make its moon form a bit more eldritch and imply more shapeshifting, similar to the angel Ramiel from Neon Genesis Evangelion. The other form below is inspired mostly by The Despair Embodied from Devil May Cry 2. The Andro form (male) is based on Super Sonic, and the Gyno (female) from is based on Sage. It isn't necessarily The End's true form, but more of something they took to personally break Sonic and Sage's spirits when fighting them. In a "I'll beat you on your own level just for the hell of it" kind of way.