Answer: The argument is flawed because the author misinterprets the word 'blues'.
Explanation:
The word 'blue' Blue most times is being considered as intelligence, confidence, faith, or trust.
The ''blues'' in this context refer to as feelings and it is not associated with the colour- blue. Other examples of colours and their meanings are given below;
(1). Black: black to most human being in the whole world represents death.
(2). Red: red colour means danger, war and so on.
(3) white: white colour signifies peace.
Both Black and red colour means a sad feeling to most people.
The statement is flawed because the author in the question tends to think that the color blue is needed to feel the blues.
What the paintings actually means is the reason for the sad feelings and not the colour-blue.