Can I ask someone to post some images from a particular camera without getting the question down-voted?
This is not a good Stack Exchange question — in fact, it's not really a question at all, but a service request. You're asking for someone to make a photograph for you, or to Google up some results.
There are review sites that do the former, and you can do the latter just as well as we could.
I do want to add, though, that peering at sample photos is only going to tell you a small part of the "differences in quality" between modern cameras. All cameras today are capable of producing stunning, top-quality images, when used correctly.
That really depends on the question. The first step is to make sure the question itself is a good fit for this site.
Then there has to be a good reason why the many pictures out there of various cameras aren't good enough already. The obvious place to look for pictures of a camera is on the manufacturer's site where they are trying to explain how wonderful the camera is.
If your question truly needs a specific picture of a specific camera that is not reasonably out there already, then go ahead and ask. This is of course, again, assuming the question belongs here in the first place. Note that the more obscure the camera, the less likely someone will be able to provide a picture of it.