I decided to throw in some labels to explain some of the features presented as I am aware they are not all apparent. Helix has been very meticulously put together to be very efficient at subduing and taking on genetic material of other men :3

Exoskeleton-
Aside from the cleavage between the various plates that make up his body, the fur and flesh feels real. Below that layer of flesh is a rubbery material that mimics muscle, with the exception that it is composed of elastic fibers that are capable of stretching to extreme degrees, allowing him to take in very large prey without harming himself. The only areas that are truly "Metal" or hard in texture are his nails and the metal antenna behind his ears. The plates on his tail are more of a firm but rubbery plastic than metal.

Nodes
These glowing nodes change color to reflect Helix's mood. Lust/blushing is a pink color. Standard is blue, Predatory/hunger is either an intense blue or a deep red. Anger may also be a more crimson red. Jealousy is green. Anything in-between those emotions fits somewhere between those color spectra

Jointed Tail.
His tail is segmented and has long stretches of elastic muscle, allowing it to stretch and coil around his prey.

Augmented feet
The joints and muscles of his paws are augmented, they can deliver crushing blows and even effortlessly stop high powered attacks. He can often effortlessly overpower a man bigger than himself with one foot alone.