It would be better if you could give access to larger pictures, since they are small, not much detail is appreciated. HDR's are normally subject to chromatic aberration, ghosting and softness due to misalignment of the different exposures. But on this small size it is not possible to watch them closely and with care.
EDIT: sorry, I did not see the links on the bottom of the page, I just tried to click on the images... my bad.
Anel has a point here, the scene does not look like one appropriate for an HDR. Try to do the following: go inside your house (nice place BTW) and look for a window. Make sure the light inside the room is off. Try also to choose a window directly exposed to sunlight (so that it's very bright outside), and take the exposures. The trick is to get textures on the outside, and at the same time, of the inside of the room.