hi , were is icon Favorite please too photos please

You mean on a members profile page or on the wallpaper page?

To Add a Favorite to your collection on your Profilepage...
Click on the wallpaper you wish to fav. Under it you will see a tab [Add to Favorites]
..click...Add. It will be added to your collection. To remove..do the same and it will tell you it is already saved so would you like to Remove it..yes or cancel.