I added 4 pictures to start adding to my model mayhem port. I would like to get some input on my photos.
3 added are in the Keshia and 1 in the Headshot album.

What is the best photograph in my port?
What can I do improve my photos?

Good basic casual portrait. Good, not great. The lighting is pretty flat. There's a bit too much dead space over the head and you might want to clean up that forehead, but it's a workable image.


Excessively posed and the expressions are forced. That right image is terribly contrived. Delete both.


Natural pose and expression, but the image is strangely composed and the hand is chopped off at the wrist. Delete.


Feet got cut off.


These are by far your best images. Well framed, sharp, flattering. They're both too dark. Try kicking up the brightness in post.

Lower the camera to eye level, the client is looking up which is cutting off the top part of his eyes
Re-crop
Crop the bottom above the models left upper arm to get rid of skin, bright areas distract the viewers, this would remove a distraction from the clients face
Crop the top so there is less space above his head, try to get the eyes at a 1/3 location from the top of the image
This would be a great scenario to use a reflector
Photoshop out what looks like one white hair top photo right of models head
Great job on the eyes and background blur


Image appears washed out, out of focus leaves are a distraction
Too much head tilt


Model looks to be falling over to photo left
Try to keep the vertical orientation correct when shooting
This image could easily be fixed in Photoshop

Will say the headshot is best

Wish you well