something that always draws me to a photo is seeing great catch lights in the eyes. catchlights are the reflections coming from a light source captured in someone’s eyes in a photograph.
when you’re taking photos you normally try & position someone toward the best light, which should in turn result in getting some nice catchlights in their eyes. it makes a huge difference in the entire result of the image, especially a close-up. in studio, many photographers use soft boxes just for this reason, to mimic the the look of the reflection of window light in the eyes. many even have preferences over square, rectangle & hexagon shapes depending upon which shape of catchlight they like best!
since i shoot natural light, indoors i like a big window (or set ‘em right next to a small window) or french door/s. these work niiiiice! so... next time you're taking photos, set out to capture some catchlights. let me know what happens!