Here are my two practice paintings in preparation for my next canvas.
I prefer the design and colour-scheme of the second painting. I added the extra windows as an afterthought, after deciding that the window was one of the parts that had worked best, and also that this addition would make the interior look more unreal. So I added windows to hover in and around the fireplace.
Although this works well in my practice painting, now I have begun the actual painting I am particularly happy with the way that the wall and fireplace have turned out, so am unsure if I want to cover it up with the extra windows! I will have to see if it needs them after I have done all the other areas of the painting.
I have also included an image of my canvas in progress.