I can’t have any idea on this why your losing points. Your saying now it’s 29,028 but i have visited your profile for me it’s showing 31,922 points?
If you think confirmly your points are lost you can use a form it’s called Local Guides Appeal Form (i think you can make an request here.)
Note : After that form you submitted it’s take few weeks time (i can’t know surely few weeks or few days) also there is no notification for you if your problem solved/not solved.
Also i have saw your photos i am thinking some of your photos are similar (same) to protect your account remove the similar photos. Your added similar photos like zoom in & zoom out what is the use of this? Try to avoid taking duplicate photos. Also it’s against for the Community Policy and your account will be removed i mean are you want to become a former local guide member? To protect your account remove the similar photos immediately.
If my message is not helpful please be patience for the response from the Moderators/Senior’s.