I just heard at the Andrew Scrivani Food Photography talk that there will be a Adobe stock #ASC prism pink Creative challenge? but I searched and could not find any more information about it -or when it is due?
I can't help with your question, but if you are interested in food Photography you might like this Lightsource pod cast episode with Lou Manna. It dates back to 2007 but it has some solid gold tips from a real pro
It's a shame they stopped making the podcast episodes but you can still get all 92 of them, and they feature people like Zack Arias, Dave Hill (do you remember when the whole world was trying to duplicate the Dave Hill look?) David (Strobist) Hobby, and Bill Simone (his 'The Boxer' composite was an inspiration for me).