The best way to judge size is to find a picture of a deer or similar sized animal that was standing in the same general area of that camera site and compare it to the picture the feline.
I have pics of my dog in the same exact spot and this cat is every bit as big as my shepherd.
I realize the body shape doesn’t look like a cougar but I looked at a bunch of cougar pics from trail cams and noticed that at certain angles they can look like this.
If this cat turns out to not be a cougar I will be very relieved but it is definitely still a big ass on the loose.