This is the Shock square from 'Every Emotion is of Equal Value'. There are 20 images - 10 'positive' emotions and 10 'negative' emotions.
Shock can be both positive and negative. Either way it is of vibrant contrasting colours.
'Every Emotion is of Equal Value' is not for sale, but if you would like to use this image or would like me to paint an individual painting of Shock, do contact me.