Using \photo to change the selected part of the original picture

[LorenzoDini]

I see that in your .cls file that you defined a new command for the image, i.e. \photo.
I noticed that if I change the "diameter" parameter, the photo is fully enlarged, but the part of the original picture that is taken remains the same.

Is there a way to modify your \photo command in such a way that the "diameter" parameter enlarges the section of the photo that is taken from the original picture, instead of enlarging the same selected part of the photo?
Alternatively: is there a way to browse the part of the original picture that is included in the photo section?
I ask this because I cannot find a way to fit my picture in a satisfactory way, since it always get cut in a weird way.