She is compassionate and caring but this can turn into jealousy and unpredictability. She manages to sweet-talk herself in front of a camera only to change her mind and not deliver.
Cancer is secretive and likes to collect things.
All her faults do not matter because the crab is so fascinating, mysterious and alluring. Cute and generally unproblematic.
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Cancer models love anything old, like this photographer and his cameras - good enough to make a wonderful model (if only you could get rid of her after the shoot).
Best used, however, on a short photo shoot because Cancer gets stressed out quickly.