The buttons for the new photo tools are located on the lower left side of the image selection.
The function of each of them will briefly be explained in the following text:
The main function is the rotation-function, that allows you to rotate the already uploaded pictures afterwards. Therefore you dont have to pay attention to the pictures orientation before the upload.
Each of these arrows gives your picture an 90 degreee rotation in the selected direction
Another fact: By sorting ur images in another order in you gallery the appearance of your profile will change.