Displaying ‘favourite’ content

On a feed of images, 3 images per column, instagram profile like, making an image the size of two columns is suggesting that the image is 'favourite' in any way?

LE: The content is being favourised by the user. Basically, the user is going to add some pictures (of products or anything that he can think of) to his profile and mark some of them as favourite (as in, how much he would like to have them or travel there), so he can receive some 'alerts' regarding the favored content.

I'd like to know if this would be descriptive enough for the rest of the users that would visit a profile. Is the learning curve too big?

Unfortunately I do not have more mock ups to share as this is very early in the dev stage.