In the first pic, the front chicken is out of focus and it has a lot of motion blur in the head. Also the camera is not level. The post and the tree in the background are slanted. You need to twist the camera clockwise a little to make everything level. Also the front chickens tail is cropped off. Ideally you want the entire chicken in the frame, or just his head for a portait. If you got 90% of his body in frame you really should include his entire body.
The second image is much better. Both the chickens are fully in the frame and in focus. I would crop using rule if thirds instead of putting them in the middle. Since they are looking left you want more open space to the left of them. So I would crop to put their heads near the upper right third intersection line.
The only other thing is paying attention to your backgrounds. In the first pic my eye was drawn to the blue/green pot/tote because it stood out. In the second pic there is a camper/rv in the background. Ideally you want a fairly uniform background that's not distracting so all your focus stays on the subject.
Here's how I would crop the second one. I took some off the top and right so their heads are near the upper right third intersection.
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