Great Art Jigsaw

Adriaen Brouwer 1605-1638
Brouwer was a Flemish painter, actor and poet. He was a genre painter and most of his work tackles subjects such as drunkenness and debauchery.
Apparently his paintings were so well liked that they were being forged even in his own lifetime.
Read more about Brouwer at Wikipedia or there is a fuller article at Highbeam.

The Bitter Tonic, c. 1630-1640 Oil on oak, 48 x 36 cm.
Well it certainly looks bitter!
The painting is at
Städelsches Kunstinstitut und Städtische Galerie, Frankfurt am Main, where you can read more.
There is a large image of this painting at Wikipedia.