Primary colours are often chosen for flags and evolve into matters of patriotism which can involve both true heart and all sorts of manipulations and deceit. But when you abandon concepts and just respond to the thumbs-up of your eyes, you get past all that and just see. If you like concepts (and who doesn't) you could also see this picture as a study in the past (brick chimney), the present (red metal roof), timelessness (blue sky), and the momentary (white cloud and snow). For myself, my favourite thing is just to see. Look out!