Answers
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Left: An image of Europa taken by NASA’s Galileo spacecraft
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Right: The end of a rusted 500 gallon propane tank belonging to my friend and photographed by me
Left: An image of Europa taken by NASA’s Galileo spacecraft
Right: The end of a rusted 500 gallon propane tank belonging to my friend and photographed by me
Are these the bottom of pans?
spoiler
You’re warm, but the shadows on these objects are natural because they’re both (hemi)spherical. I just used the curves tool to deepen the dark tones on one of them to make the shadow more pronounced.