Even though HDR will get you the necessary detail, your white balance is different in different parts of the room. You'd be well served to use off-camera flash to light dark areas and gel them to get a more consistent white balance.
I'd also be more mindful of the edges of the frame -
#1 half a picture frame on the left
#2 has part of a hutch, part of a chair, some white thing on the left, and a chair in the upper right corner.
#4 part of a window frame.
I assume you are using a tripod to get all these consecutive exposures - plenty of opportunity to clear the edges of the shot.
Regarding distortion -
particularly in #2 and #4, if you're going to leave the hutch and window frame, at least correct the distortion in post so they are vertical
the pool shot is quite distorted, with the umbrellas and house all tipping in to the center. That is easily corrected in PS, no reason not to.
Here's the pool shot with distortion corrected and WB set off the white trim on the house. I suspect you'll find, as I did, that the 10-20 isn't very useful at 10mm for architecture. You're better off shooting at 12mm, which is about the equivalent field of view once you correct the distortion at 10mm.