Origin Being Epitaph has more relations to Tron or the Twilight Realm of Zelda than a Xenomorph due to the glowy things on his body.
i’m guessing the main thing was the legs, yes?

well, those kinds of legs are actually very common in nature and are seen on usually very fast and nimble animals like Horses, Dogs and Cats. i just take a very keen liking to it as it looks intriguing and also give a slight advantage to their speed over flat terrain.