This is a small devotional image. Reminding Mantegna's paintings there are peaches and figs above Mary. Their Christian symbolical meanings relate to the story of Christ: Redemption (peach) and Fertility (fig). On the parapet are the pink or carnation, symbol of the Passion of Christ while violets are Marian flowers enhancing the Virgin's humility and purity. The fly on the parapet far right, represents evil, justifying the sacrifice of Christ.
<bdi><a href="https://en.wikipedia.org/wiki/en:Carlo_Crivelli" class="extiw" title="w:en:Carlo Crivelli"><span title="Italian Renaissance painter">Carlo Crivelli</span></a>
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<a rel="nofollow" class="external text" href="https://collections.vam.ac.uk/item/O14935/virgin-and-child-oil-painting-crivelli-carlo/">Victoria and Albert Museum</a>