Hello, I tried to register several times, but when I add my pictures and "save", nothing happens (not saving, not error message...). Did I miss something ?

Hello, please check if you have autofilled password label. If you don't. Please log out and login again, and fill up only text information (check password label) and save. After that try to upload photos to the portfolio (checking the password label) and if this will not succeed, please check if all photos are jpg or png under 1mb each.