Well, here's the much awaited results to April's quiz:
and the carnation is..... (symphonic music in the background)
In A Vase of Flowers, painted by Siméon Chardin, the XVIII century painter, around 1750
Here's a link to the National Galleries of Scotland, where it is exhibited: LINK
"The white and blue colouring of some of the flowers and foliage echoes those of the vase, complemented by the pinks, reds and touches of yellow in the other blooms. The subtle play of light and shadow distinguishes the table from the background and its sombre tones are relieved by the colourful fallen flowers"