@TolerantAxe97 I was looking through the comments section of the Makuta contest and I don't think that the cape on your moc will be allowed.
Someone asked "I have a question (and I'm not sure I've seen it asked yet), but can we use official Lego cloths? Like Kylo Ren's cape, or Phasma's cloak? Thank you for your time! "
And an admin responded "capes from LEGO sets are allowed, but please no custom made parts. "
Just trying to help you out.