The picture shows a close-up of an ant. It is characterized by its red or brown color, six legs, and
elongated body. This is likely a type of
worker ant, recognizable by the prominent antennae and mandibles. It's not clear from this image whether it is on
a piece of fruit like an orange as suggested or something else, but it is certainly on some kind of surface that has a reflective quality to it, possibly due to moisture or another substance.