since you just started there's no point in criticizing you as if you were making AAA environment art, but here's some thoughts aimed at beginners.
first, the scene lacks contrast. the scene is flat, all areas are somewhat equally lit. try using different lighting, for example make the scene much darker (there's no sun, very little light would penetrate that kind of fog/cloudy weather) but use a bright spotlight ontop of the house shining down infront of the door. this will create contrast in your scene (dark vs light areas) which pulls the eyes of viewers towards areas of attention.
second, your models are WAY too low poly for todays standards. even for a beginner, you have to push the geometry detail much further. for example that wooden crate on the right - it's just a flat texture. don't do that, instead model the entire thing in 3d (the big pieces of wood on the sides etc.). same with the barrel and the rest.
third, everything looks very blocky. all of your models have a very flat silhouette due to the lack of detail in them. everything is perfectly straight with no changes in curvature. for example look at the wood pillars on your shack, they are perfectly straight. wood is not like that, it has lots of little ripples and bumps on it. this is so often overlooked by beginners, and they often make the mistake of then going too far and adding a ton of really deep dents to everything. just look at pro environment art and see how far they go with it.
there's a lot more i could talk about but it's not really worth mentioning if you're a beginner since you won't start doing that kind of stuff until much later. just remember never to give up no matter how shit your situation may seem or when nothing seems to work. trust me when i say it gets better over time. years from now you can look back at your old work and smile as you see how much you improve over time when you never give up. i've been there.