Princess Kate is set for a tough week ahead of an important Prince Louis decision. Prince Louis, the royal couple’s youngest child, turns six on Tuesday, April 23. The Prince and Princess of Wales almost always release a new photo of their children on their birthdays. In recent years, Kate, 42, personally took the snaps of the young royals, instead of enlisting a professional photographer. However, Princess Kate suffered a backlash last month after admitting to editing a Mother’s Day picture of herself alongside Prince George, Princess Charlotte and Prince Louis. Online critics noticed inconsi…