Solving a Scooby Mystery! – Solution

Scooby’s eyes are clear in the photo on the left, while his eyes are green in the photo on the right. The binoculars he’s holding have clear lenses in the photo on the left, while in the other one, they have blue-colored lenses.

The second photo is missing the whistle around his neck, and the collars he’s wearing are different colors in both photos. He also has a spot on his armpit in the photo to the right, and the chair has two bolts in the first photo while one of them is missing in the second one.