If it tells a story, if it leaves you wondering, if it makes you look twice, if it makes you smile; then it will make a good photograph. I’m not saying don’t take photos unless it meets these criteria. Hey-burn up the shutter! That’s my motto.
You want to present your work in a way no one has seen it before. Chocolate chip cookies are great but it’s exciting to try something new and exotic. What will a hint of lime do? What if I use peanut butter chips? Add more vanilla? Same concept with a photo. What if I take a photo of just part of the horse? What makes a horse a horse? How much of the horse can I leave out of the photo and still call it a horse?