>lower quality JPEG version Nope, not sure where you got these PNGs from but my gallery has JPG files ripped directly from the game and they're pretty much the same in terms of quality. I guess you've just converted these pictures from the game into PNGs and then claimed that they're definitely better, right?
That's wishful thinking. I converted a BMP source rip. Like any gallery I upload that's replacing a JPEG upload I compared the artifact level of the original gallery before publishing. Yours has compression artifacts that aren't in mine. If you really want I'd be happy to make a side by side zoomed in comparison image of what I'm talking about.