The Legend of King Arthur - Siege Perilous

Hi,
This is my third prop for the challenge The Legend of King Arthur.
Concept by: Décio Júnior:
https://www.artstation.com/contests/the-legend-of-king-arthur/challenges/66/submissions/44466?sorting=survivors
You can check out my challenge full submission thread here:
https://www.artstation.com/contests/the-legend-of-king-arthur/challenges/70/submissions/47043?sorting=survivors