Usually only the regional imagery sets are from planes, I believe all the global ones are from satellites. But it’s a moot point, the color doesn’t really change the fact that the buildings are completely flattened. No need to prove your credentials 😉

Not necessarily, if you frequently reference satellite imagery like in the open street map community, you’ll notice that colors and saturation cary wildly between satellites, because they use different techniques to get clearer pictures through various atmospheric effects, and some techniques give greyscale output which may just be combined with color data without much regard for aesthetics. For many applications, color is unnecessary, so many sources just don’t bother touching up the colors. It’s totally believable that both images are as-is from their respective sources.

I think it might actually be photoshopped to look like a print, because that’s the same picture that’s on the Wikipedia page for Jesus Nut, with the same hand, background, and shadows, except on Wikipedia it’s obviously a metal part. I spent way too long comparing them trying to figure out if they shopped a 3D print over the real one or colored and textured it to look like a print, and I think it’s the latter.