Cosplay Character at Preview Video

Hello. I’m thinking in an After Effects Promo project about Cosplay… I want to know if it’s ok to use cosplay images cause it’s all about Characteres of movies recreated …??? It’s OK a Cosplay Stormtrooper?
I’m planning to use this (Creative Commons) Video:

It’s a sample of what i’m doing…
Thank you very much!! Cheers! :slight_smile: