The biggest issue that I see here is the visual artifact of using a wide-angle lens to try to get the whole room in-frame at one time. Experiment with camera positioning and f-stops on the camera settings – normal, wide-angle, zoom – to try to find the most-pleasing arrangement that also puts everything in proper scale. Right now, as you can see, “it looks like a doll’s house.”
In fact, when you’re building and dressing any digital set, “scale” is quite important. Blender now offers various “physical units” – feet, meters, and so on – to make this easier. So, go to that cabin and measure things. Measure the walls (width and height), measure the bed and the window, measure how far it actually is from the ceiling and the floor. Those logs – how high are they? How many inches do they stick out from the filling between them? Then, incorporate those same measurements into your digital set.
Also notice the scaling of the textures, e.g. the roof boards. The UV-mapping determines how the texture maps to the 3D surface. How wide would these boards be right now?