Group A: BC007

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After

Detail

Before                                                                       After

Comments

Shinier (possibly due to lighting?) no obvious changes.

Group B: BC016

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After

Detail

Before                                                                      After

Before                                                                       After

Comments

Slightly brighter and scratches stand out more.

Group C: BC010

Before

After

Detail

Before                                                                       After

Comments

More contrast, removed some dirt, scratches stand out more.