I don't know if this info will help you at all, but regarding the red-and-blue colour trace that can be found:
If these statues are depicting the Virgin Mary, she was basically always wearing red and blue garbs throughout the Medieval times and the Renaissance. Blue represented her heavenly divinity, while red was her earthly love. There are a few exceptions to the rule, and then she's basically always seen in gold, as to show her glory (especially in Byzantine works).
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Date: 2006-04-01 07:51 am (UTC)If these statues are depicting the Virgin Mary, she was basically always wearing red and blue garbs throughout the Medieval times and the Renaissance. Blue represented her heavenly divinity, while red was her earthly love. There are a few exceptions to the rule, and then she's basically always seen in gold, as to show her glory (especially in Byzantine works).