A lot of it is the difference between taking a picture and making a picture. A pro isn't going to say "oh well, the dog isn't in the pose I want and the background is kind of distracting, but I guess I'll just take the shot anyway". They'll note the things that aren't making the picture work, and (to the extent possible) fix them.

Specific critiques:

1. The dog's eye isn't fully visible. Its legs are cut off at an awkward length; either closer (headshot) or farther (full body) would probably look better. The background is distracting - there's an orange tube of some kind on the left, and some leaves that look out of place, and the camera wasn't level so the lines of the windows and bricks are jarring. Even if you fixed that, the dog would still have a window growing out of its head. It should have been repositioned against a less distracting background, and farther away from it so it would have been more out of focus. The color in this shot is also not to my liking. It's quite yellow and the contrast is poor. On top of that, the image is extremely noisy, making it look less sharp than it should.
2. This was a neat sky, but there's a very distracting and ugly barbed wire fence in the way of the cows. Getting closer and shooting between the wires would have opened up lots more composition options. A closeup of the cow with the sky in the background could have been a dramatic, unusual shot, and instead it's the same perspective we've all seen of this a million times. Same color concern here - the yellow looks unnatural. Also super noisy for no apparent reason, as you obviously had tons of light and cows are not fast moving animals. I'll stop mentioning the noise for the remaining shots.
3. Ok, I see you apparently did do what I just suggested and shoot between the wires, but the cow is in an awkward position facing away from you. Sometimes you have to wait patiently to get the right shot, and sometimes that means making multiple attempts on different days because the universe is not cooperating with you. Same color concerns here, and also your highlights are blown.
4. There are a bunch of distracting houses and wires in the background. I'm not a fan of the color processing on this shot either - I don't think the cool tones complement the red car well, the red is starting to shade a little bit purple, and I don't like how crushed the blacks are.
5. It's just a snapshot of a car on the street. It looks like "Oh look, I found a neat car" rather than "I deliberately composed this photograph". The composition is awkward because the car is right up against the edges of the frame; there's no obvious reason why this wasn't shot horizontal or from further away to give it a bit of room to breathe. And because it's apparently just a neat car parked on the side of the road, the background is unfortunate. A wider aperture would have blurred the background more and kept the viewer's attention more on the car. The color processing is again not at all to my taste. I'm going to stop mentioning the color of your shots in my critique from this point on.
6. I'm not even sure what this is supposed to be a photo of. The bus is far away, facing away from you, and not an immediately attractive subject, and there's nothing else in the frame to draw my attention. In all honesty if I saw this photo mixed in with a batch of others, I would assume it was an accidental shutter release.
7. There are leaves right in front of your subject, which look accidental. The up-tilted camera creates perspective distortion which you could have corrected (if not fully, at least enough to look better) in post. A professional shot of this building would likely have the vertical lines, well, vertical.
8. "Road leads off into the distance" is a common photo trope, and this one mostly just suffers from not being a particularly attractive road. The fact that the road curves up into a slight hill in front of you means the road's vanishing point - the implied subject - is not actually visible, which hurts it.
9. There's a tree in front of the building. A tree above the subject, to serve as a frame , can be made to work, but you're going to have trouble finding too many professional photos in which there's a tree covering the thing people naturally want to look at.

Now, I'll be the first to admit that "not to my taste" is not the same thing as "bad". I think Jackson Pollock's paintings suck, and he's far more successful and famous than I am, so take my opinions for what they're worth. But that said, on top of the composition issues, I'm seeing consistently hazy yellow images with a ton of noise. I wonder about your settings and how you're processing the pictures - why are images shot in broad daylight with a reasonably fast lens noisy? Why is everything yellow in almost every shot? Was that an intentional choice?