Once again, thanks all for commenting.
Most of the comments have something to do with the branches and/or the chimney, so let me address it first:
Branches... well, I wish they were not there... but given they were, I am a bit reluctant to go into so much cloning to remove them. I do not mind cloning a stray element here and there, or changing a limited aspect of a picture (like the shade of green), but I am not so comfortable as to alter reality that much. After all, where do you stop? Remove branches , chimney, other recognizable elements of reality... and what do you end up with?... pure geometric abstraction of shapes and colors?... another Rothko or Mondrian? Perhaps I would not mind arriving to such an abstraction, but I would prefer to start with a viewfinder, rather than post-processing. From another perspective, the image is all about juxtaposing, and in the case of branches, it is juxtaposing complex, chaotic shapes of nature with those orderly, straight, man-made lines and shapes.
Chimney... I tend to agree with Fred on this one. I like how the chimney balances the dominant creme-white on the left side. It also repeats the shape of the brick wall, introduces a pure triangle, rectangle and mini squares, counter-balances all those diagonal lines, and the blackness of its top counter-balances the deep shadow on the left. Phew... a lot of intellectualizing... but ultimately, I simply like it the way it is
I do have other versions of the scene. I managed to "work the scene" compositionally and take a whopping five frames (the posted one is number five). I say "whopping" mockingly, but five is a great success for me, given my ADD (as per my doc) or my "natural laziness" (as per my wife)
I started with this scene, attracted initially to the juxtaposition of green and red (I left the original shade of the word "Green" unchanged, for comparison):
[attachment=20151:RGB1.jpg]
I then noticed a flower pot, with its own Christmas combination of red and green, and how it matches the red awning in the background:
[attachment=20152:RGB2.jpg]
As I was coming closer and closer, I had to use wider and wider zoom in order to get both the sign and the awning, and at some point the sky started to creep up (again, the original shade of the word "Green" is unchanged):
[attachment=20153:RGB4.jpg]
I then realized I actually like the additional color, but somehow the area was too small to balance well with the huge red one. Hence the snap number five (originally posted), where all the surfaces and colors tend to balance well (according to the ultimate authority, i.e., me ):
[attachment=20154:RGB5.jpg]
If you managed to read this far and did not fall asleep, I am indeed flattered , but I hope we all learned something in the process... I know I did.