This oil paint of a still life with roses was made by Elias van den Broeck (active 1670–1708), and is now in the collection of the Rijksmuseum Amsterdam .
One snail is immediately visible.
There is a second one nearby however…
Both snails are yellow respectively pink morphs of a Cepaea species, dextral specimens and the animals are painted in typically ‘van den Broeck style’: elongated and elegant.
 RMA, inv. SK-A-1463. permalink: http://hdl.handle.net/10934/RM0001.COLLECT.6304.