Copy right for a Panzer Dragoon cosplay act

Hi me and my sister are doing a cosplay act of panzer dragoon saga at an animeconvention in the Netherlands.
For the act we are going to use two props with an image of the official art from Panzer Dragoon Saga.

‘’ All content on this website, is owned by Chris Alley (aka Solo Wing) unless otherwise noted. Please ask us first before using the content on this website for fan or commercial purposes.’’

The two images we are using are from this website. So my main question is if we have permission to use these images from this site?

If it’s official art, I have no claim over those. For fan art, check with the artist. I will update the message to make that clearer.

Looking forward to seeing the cosplay. :anjou_happy: