OK, stuff I'd have done differently (note, an ultra-wide lens of <20mm is useful for urbex interiors):
1) - Stepped back to get the whole of the steps in & kept it level, metering off the brickwork/exposed stone for a reasonable exposure, then pulled up the shadows in post.
2) - Gone portrait to get the height of the doorway to frame the scene in with the car lurking at the bottom, metering off something with a bright mid tone.
3) - Works pretty well, but the car is a little central. Might try slightly dropping exposure.
4) - The composition isn't too bad, though stepping back would frame the house with branches & moving forward would make it a more major part of the frame. There's an interesting structure to the left that might offer compositional possibilities if included too. The image is at least a stop, possibly 2 stops over-exposed, and should have been metered off the exposed stone at the top of the building.
5) - Compositionally the opening is a bit too central, and it would be better to use lead lines from either left or right for a stronger, more arresting image. Exposure is a couple of stops over again.
The last image of the second set had potential, but the camera needed to be level and about the same height as the vinegar bottle, plus there's bad flare on the lens & the scene is again a little over-exposed. I'd focus about 1/3 of the way back into the room & try to find a focal length that would cover floor to ceiling of the back wall with an aperture that would leave everything acceptably sharp.
Hope that's useful.