There have been several self-portrait contests by @battleaxe, plus an ongoing contest each week with every episode of the P&B Chit-Chat Show where people are encouraged to take a "mug shot" with a favorite beverage mug. The P&B show offers a 2 STEEM prize each week to their favorite contestant.

However, your idea might, indeed, be the very first to ask for a "high quality shot" of the contestants on the Steem blockchain! Bravo for this twist! Your example shot is fascinating and incredibly creative, so many kudos for that! I will help spread the word in Discord. I hope you get many participants! 😃