What species?
If its a panther, post some photos of the animal from the side with its tail straight out. If its a veiled, males have a small bump (tarsal spurs) on the backs of their hind feet. Post photos of the back of the back feet if you want us to confirm. If its another species, let us know which one and post some general photos of the animal or wait until someone can tell you what to look for/take pictures of specifically.