What's with the creepy faces guarding your pixel art? XD
The ones I think work the most are the fence and floor boards on the bottom left. The ones I think need the most improvement are the shrub (or tree?) and the wooden wall down towards the bottom. I'm not sure about the color choices for the shaded areas of the beds blankets...they kind of look like jpeg artifacts, because they're so hard to notice. The bed, bookshelf, and the two things to the right of them are pretty nice looking, though. For the shrub...why is half of it purple and yellow? There are also no visible leaves on it, which give it a weird texture...it kind of reminds me of a cheerleader's pom-pom, heheh.
The fence and boards to the bottom left are my favorite, and look pretty pro. The color choices are nice, and they're very readable. Nothing bad to say about them. =D
Overall, good work, I think. If you put all these in a game as-is, I think it'd be a pretty nice looking game overall, the tree being an exception that needs a bit more work to match the rest of them, I think.