@T(h)ink and Virginia
Oh yes, we have seen this famous painting parodied too often, it reminds, partly, of a mixture of Flemish, Italian and some other influences, combined with American Precisionism, and my own impression was that of a sad, tired couple, having gone through years of hardship, sacrifices, pain, toiling and dullness - left without inner joy - caught inside a rigid, intolerant and merciless system, were duty, coersion, obedience, atonement and shame killed every sparkle of inner joy, compassion, humour, motivations and love.
By the way, the opposite of this too severe portrait is that shown in the occasionally retransmitted TV parody series Green Acres (for English exercises):