No lens distortion correction. Using cs5.
Here's some bracket shots. My transitions are terrible. I do them by hand (couldn't find an autoblend type feature)
2. The lace/silk curtains here were horrible.
I can already tell I need to bring my f/stop to 8 (from looking at everyone elses exif...
First, I think all of the images you have posted are nicely composed. I do think you should try to lay off the wide end of that lens a bit. UWA tend to distort and also make rooms look bigger than they are. You don't always have to show as much of a room as possible.
Confining my comments to #3 now as they can be extended to the others also.
First, the window pulls don't need to be so dark. In fact, even though that's how we see them when we are there, making the windows balance too much with the room tends to harm the illusion of depth in a photograph. Remember that a photograph is a 2D image while real life is seen in 3D. The window looks more like an art piece hanging on the wall.
Second, the highlight on the bedspread is lighter than the outside view! This is an unnatural look that a viewer can easily spot. Again the window pull is too strong - or bring that bedspread down.
Third, masking on the window is uneven and obvious. The darkened muntins in the windows are a particular problem. If you are going to blend by hand, learn all the different selection tools and masking techniques so you can blend seamlessly.