@Steve201 As the wise @Gerry-And-Rashid0 say, your bookings will gradually pick up. Meanwhile, you could have a rethink of some of your photos.
Your room looks very attractive, and the bathroom is elegant.
However, it isn't possible to see the relevance of photo #1 in the thumbnail in search view, as you don't see the caption saying that it is the view from the bedroom.
The street pic is very atmospheric and unusual and either this one or the bedroom pic would make a good headline pic.
I would suggest taking the outdoor photos again in due course, when more leaves are on the trees, on a sunny day.
You will get a better pic of your pretty courtyard if you don't point the camera down at the paving; on a sunny, summer's day, kneel right down near the prettiest plant, and point the camera at the plants and buildings to show the surroundings better.
Perhaps you could add some information about times or distances to other tourist sites in London.