Simply click or tap on the photo area you need to revise. A comment box will pop up, type your comment on the box then click on SAVE COMMENT. After entering all your revisions, don't forget to click on the SUBMIT COMMENTS button on the upper left of your screen. 

To approve your album, kindly click on the button that says THIS SPREAD LOOKS GREAT! NO CHANGES! You need to do this ON EVERY SPREAD. After doing so, simply click on the SUBMIT COMMENTS button at the upper left of your screen. Your album will automatically be in line for production.