From my beginner standpoint, these are good photos. Most of the shots have good light considering its all natural. One of them is a bit bright, but when the moment is right, you take the shot with good sun or not.
A suggestion for next time: Try opening up the aperture a little more (lower number). Get that background nice and blurry, unless you already did this as much as the lens would allow. I'm a newbie with a point-and-shoot, so I don't know what aperture creates what depth of field. Besides, I probably couldn't do any better myself.
The last photo is my favorite. She looks so comfortable in front of the camera here, and the lighting seems to be very even and subtle. Plus the background is neutral, so it doesn't distract me from looking at her. She is the main event, after all...
Also, great job of cropping the photo in natural spots. I always am cutting off people's limbs, and you didn't do that at all! I know that's a beginner thing, but as a person who does this a lot himself, I appreciate a good photo without any photographic amputation
I hope my comments aren't taken the wrong way. I am only trying to help, and please keep in mind none of it should be taken as truth, only as opinion.
Thank you for sharing!!!