Hover your cursor over the 'Profile' icon (the icon to the right of the black semi-circle) on the uppermost navigation menu, then click on 'Photos' in the drop-down. In the 'My albums' section, click on the album titled "Your Username's Photos". In the 'Main' section click on 'Manage Photos'.

Then in the 'Manage Photos' section, simply check the box in the top left corner of the photo you wish to delete. Once you have selected the photos or photos to be deleted, click on the 'Delete' button at the bottom of the 'Manage Photos'.