Hmmm. I have one of those:
View from My Chair
Frankly, I'd have trouble claiming this to be abstract, even by my rather generous definition of the term as it relates to photography. It is, quite literally, a view from my favorite chair. The next one, maybe. Although it's also an unmanipulated photograph―pretty much straight out of the camera except for some unexceptional post-processing.
Window Treatment
Chris they are very nice images. I particularly like the view from the chair. However, I see the window image as an abstract, but not the view from the chair. Why, because to me the image shows a straight forward image of your rooms in the house as rooms with art. If your focus was on the corners of the room, or the shapes of the windows or how they created lights or shapes, then I would agree they are abstract. The view from the window isolates part of the tower and makes us see it, not as windows, but as shapes, tones lines and colours, even though we may recognize the true subject. The other possibility, as Russ suggested, is to depict the subject, in a surreal or other worldly manner.
We accept anything abstract or semi-abstract in the thread anyway. So post away, please!
JR