These images are all very grey and visually flat.
All of them have a certain graphical appeal, I think you're pretty good at finding things to put in the frame, and at putting them there. They are all, essentially, abstracts, which isn't a bad thing, just an observation. If you make some adjustments to the tones within the images, I think you'll like them better. The ceiling design is begging to be made more white and contrasty, in my opinion, as is the picture of dried plants against the wall. Just as a for instance.