Strategy for consealing my hidden letter and number: S and 4

Strategically, I will be placing my hidden letter and number on a number of levels throughout my entire island.
below is an example of one of the ways I will do this on a macro level

image1: here you can see a night scene where the outline of the trees form an 'S' and a '4'.

I have also used the rock and land formation to create another level of subliminally incrementing my hidden letters.
towards the top lef hand corner of the image below, you can see a faint outline of the letter 'S' and the number '4' that has been rotated anticlockwise about 90 degrees so that the nose of the '4' is facing down the image.

image 2: the 'S' and '4' are in the land formation- which I have used as a lower scale depiction of subliminal letters.

There are four levels pr 'stacked' roofs on the Chinese styled structure to the right of the image.

Four boats. 'S' and '4' are also written using the rocks in the upper center of the image.

Numerous '4' and 'S' objects are hidden throughout the island concealed by their green camouflage and the shrubs.

Numerous '4' and 'S' objects are hidden throughout the island concealed by their green camouflage and the shrubs.

'S' and '4' is written using the main horde of trees on the island.

four little island off to the upper center of the image.

Four docks with four different types of houses in the village

16 wind generators: 4 times 4 = 16

the letter 'S' is written in a light red brown colour on the island face.

The letter 'S' is written using the vegetation and perspective to conceal.