Trick or Treat!

Thank you for your request.
Sorry for the wait.
You have four original characters, that's impressive! I'm envious. I hope to create my own original characters someday as well.
I wasn't sure if I should treat each character equally, but I found it easier to draw with some variation in emphasis, so I chose this layout.
I did my best to follow your instructions as closely as possible, but there were a few parts where I was uncertain.
I hope it matches what you were hoping for.