The poses, the lighting and the background are all excellent. The model, I assume she is your daughter, is lovely and the images show that she feels comfortable in front of the camera with you behind the camera. There is one thing about those portraits however that I would like to point out. The focus is mostly on selected blue flowers on her blouse or on the seam of her blouse.
I am not sure whether it is an issue of the camera needing some micro focus adjustment. I see that you are using a DSLR and that issue is quite common. Or whether you focused on her eye and then you recomposed, causing the focus to fall somewhere else except for the eye.
FYI, the last image shows the eye or eyes to be almost in focus. I got the feeling that you handheld the camera/lens combo, right? What was the shutter speed you used for those portraits?
I hope you don't mind my pointing this out to you,
Joshua
The focus was always placed on the subject's eyes. I am having a focus issue with the Sigma 135mm lens. I just got Sigma dock to update the firmware and set focus. Just lazy to fix it. Thanks for pointing it out. She is my friend's daughter. Fstop at 2/ ISO 150/ Shutter 200.Thanks for your feedback.
Glad 😆
Beautiful pictures. The slight defocus issue seems to be from motion blur rather than from the lens. You can see that with the four view from Topaz Sharpen, particularly looking at the catchlights or lines between the teeth.