Black and white images have been attracting more attention and getting higher CTRs. See here if they're working for your filter selection too.
B/W
Color
73% CTR
Image Type
Photographs usually win for CTR, though, this analysis will tell you if this is true for your filter selection as well.
Illustration
Photo
15% CTR
Animals
Images of animals are usually getting higher CTRs, but is this true with your filter selection?
No Animals
Animals
13% CTR
Subject
In general we recommend images with people for higher CTR, but check this analysis to see what kind of images are trending now.
No Person
Person
9% CTR
Location
Images taken indoors or images taken outdoors? This analysis tells you what type of image got the highest CTR
Outdoor
Indoor
4% CTR
Gender
Are images of women always getting higher CTRs? This analysis will tell you.
Woman
Man
3% CTR
Food
Should you be using images with food or images without food? This analysis tells you what type of image got the highest CTR with your filter selection.
Food
No Food
3% CTR
Text
Although images without text usually work better for CTR, this analysis will tell you if this is also true for your filter selection.