Must-Visits and Skips for Honeymoon?

Hello! I am getting married this summer and we have booked a honeymoon trip to the UK (mostly) and we both have never been there. We will be in the area August 25-September 24, so we have some time to explore. I know some of these areas will require long trips, so are there any that are absolute must-sees or any we can pass on? Would love to hear any opinions!

Paris (we are flying into Paris, so cannot change this)
London
Wales
Liverpool
Isle of Man
Edinburgh
Fort William
Ireland (we are flying home from Dublin)

Thank you so much in advance!