Beautiful! It's a shame all I have is a screenshot of a video.

This was done by Mark Merlino in 1982 at the latest. He filmed a C/FO meeting and posted it on the Prancing Skiltaire YouTube channel, and this framed painting gets zoomed in on for a moment.

A couple of skiltaire on a desert planet, one's shooting what looks like a Star Trek phaser. My heart..!

https://www.youtube.com/watch?v=jB5tvw2rFlU three minutes and fifty seconds in.