A Valentine’s Day Puzzle

For over a year now, I’ve been posting a daily puzzle on Twitter, inspired by whatever the Word of the Day is, as presented by Merriam-Webster. It’s a fun morning exercise, to get my puzzler’s brain warmed up. You can follow along at @puzzlereric.

Merriam-Webster’s word today, fittingly enough, is CUPID. Here’s the puzzle I came up with:

Cupid is getting a bit weird, shooting his arrows not just at people but at objects. He’s matched up one picture from the top row with one from the bottom row according to a certain rule. Can you figure out that rule and therefore which pictures he thinks make great matches?

(Click to enlarge the image.)

I’ll post the answer in the comments tomorrow. No spoilers, please!