It seems that you have a good eye, especially for a beginner. The framing is pretty good in all of them.
Here are a few critiques/opinions. Going to say what I didn't like or what could improve the pictures.
1. The background is distracting.
2. Same as above, the background/overcast is a little too dark imo
3. Over exposed/saturated on my monitor.
4. I like this picture all in all. Could do without the border though : p
5. Looks like a great candid shot, again background though.
6. Another good shot, great framing. The child on the left is a bit soft focused though.
Keep up the good work!