The snow in the first is all over-exposed and lacks any kind of detail. Also the roots of the tree are cropped by the frame, when I feel this might make the tree fall over. It wants to have its roots.
The second is all out of focus where the focus should be, i.e. on the silhouetted trees in the background and the sunset colours. Here, the in-camera flash automatically switched itself on because the camera felt it was too dark for photos already, and the autofocus focused on what the focus light decided should be focused on, which is the flash-lit branch in the foreground.
The last looks like it has been taken out of the side window of a moving car, in the manner of "Oh look, that nice sunset!" - snap! Sorry. Like that, good quality photography cannot be achieved.
To go out in darker situations such as sunsets or night, you need to be able to work your camera ALL manually. So you can avoid that it decides all by itself to up the ISO and cause noise, you can avoid for the in-camera flash to suddenly jump open and light up branches that were never meant to be lit up previously. You can thus avoid that the auto focus focuses on things you did not WANT the focus to be on.
Indeed, you can take better photos when you have learned more about how your camera works. Then YOU decide. Not the camera.