Brooding shadows

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have it zoom in and out once in a while Periodic bursts

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have it zoom in and out once in a while Acceleration/Deceleration

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sky Aurora Borealis

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have it zoom in and out once in a while Oscillation Effect

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Contrast enhancement

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have it zoom in and out once in a while Depth of Field

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have it zoom in and out once in a while Zoom Timing

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