Thanks for posting the pictures.
I don't know about the dinosaurs, they've all been smaller than I imagined when I've been to exhibits and museums.
They look bigger in the movies.
They never manage to make the suffed animals look lifelike anyway and the poses are usually ridiculous. Fortunately, many of the stuffed animals are several decades old, so the demand isn't that big. They've rarely used healthy animals either, I know that a few dead pet snakes have ended up stuffed in museums.