Very nice pics. IMO the sky could have been darker on the 2nd pic.
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Nikon D90
18-105mm f/3.5-5.6G ED AF-S VR DX
Nikon 50mm 1.8 AF D
(for now)
The first one of the house is excellent. Really nice. The others are nice too, but indoor HDR doesn't really have that same wow as outdoor, unless it's an interesting subject or composition. Well done.
All of them seem well controlled (you didn't go too far with the tone mapping effect). I think the third could have used an extra exposure to get the outside at other than overexposed (the fourth is fine in that regard). The fourth is hard on the eyes, I don't know if it is color fringing or perhaps the camera moved between shots, it just has a blur to it.