The original
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I believe I messed with the "Curves" on this one
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I think I just messed with the "Levels" on this one
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I think this might have been changing the colors and saturation??
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I don't know what I did here
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With this one I overlayed a photo of a rock or something (not my photo) over a copy where I changed the levels.
I like the one where I messed with the curves (whatever that means). It looks irridescent.