For example here is a screenshot of another room you’ve upscaled:
But that’s not the point: People get the impression it’s just upscaled partly because there is just not really a lot detail added and maybe partly because sometimes those strange shapes are there which don’t look like what people imagine when looking at the original mess of pixels.
(btw. in the screenshot above the Stormtrooper mask looks extremely goofy, although admittedly the original didn’t look perfect either)