With the exception of REALLY skinny women, it is seldom a good idea to photograph any female straight on as it makes them wider. That pose in #1 is just not flattering. Also, you were out in the direct sun and that has blown out the highlights on her left side and she is squinting in the harsh light.

#2 is pretty good. Still have that unflattering sunlight, but at least she is turned a bit and that will narrow the shoulders. The leaves hides her body, so no issues there. Her arms are hanging straight down and it would look nicer if a hand were on a hip or if she were holding something like one of those flowers. (hands and arms are tough).

The running dog image is cute. I would crop it tighter, but that is just my choice.

The last image has a blue thing in what is a B&W image. Why? Cute dog and cute image, but why is that thing blue?
The dog's eyes would benefit from a catchlight just as human eyes do. Eyes without a catchlight have no "life."