Give me your opinions please!

They're called Hooptails (shh their entire body is their tail) and they're pretty much a snake but mAgIcAl. Their hoop is pretty much their life source, where all their energy is stored. They don't have a heart, nor do they bleed, instead, their hoop pumps a gold fluid into their system that acts as blood. They do have a brain though, so they can feel emotions. If you break their hoop then they'll die a slow, painful death. It's considered treason against their queen if a Hooptail's hoop is broken on purpose. Speaking of the Queen, the only thing different about her is that her hoop is bigger and she wears a crown.

That's all I have about them right now, what do you think?