The word cherubim is simply more than one cherub.
The photo is partially appropriate as it shows more than one of us, otherwise it could be said to illustrate whichever word is the antonym of cherubim. Rascals perhaps?
Here's a fun monthly competition. You're asked to write a story using photo prompts so you might like to use it for inspiration even if you don't plan to enter the competition. There's a cash prize of $30.
And here's another monthly competition. You have to 'like' their facebook page* to be eligible and on there you'll also find the monthly theme and word count. You submit via a facebook message**. The prize is a $50 Amazon voucher.
*While you're on facebook you could like mine too ;-)
** I've sent mine already. I don't know the punctuation combination for a smug smirk so please pretend this is it :-$