I like your photos very much. I hope you are happy with them.
The first photo with the silhouette of the women is great.
The second has a beautiful mood. The only thing I would say is the sky is blown out and it would be good if you could bring it back some.
The depth of field in the last two is OK. If you want to control DOF you can use a calculator to understand your DOF at given setting before you shoot. There are online DOF Calculators like
Online Depth of Field Calculator or you can buy one for your iPhone or iTouch and take it with you in the field. For your 50mm 1.4 you would get just a fraction of an inch of DOF @ f1.4 and 2” @ f8 so knowing your DOF is critical
Sometimes narrow DOF can be just what you want. In the second color photo catching the two little figures as the only in focus elements is very nice.
One person can always give you suggestions or comments on you photos regarding, composition, contrast, color, sharpness, you name it be what’s more important is what you intended with the photo.
Good luck and keep shooting.
be well,
joe