IELTS 1: the layout of an island as it was earlier, with the development of its infrastructure later

an island, before and after the construction of some tourist facilities

Please look at my essay below. I really appreciate your help.

The given diagrams compare the layout of an island as it is earlier, with the development of its infrastructure after that for tourism.
It is clear that the island experiences dramatic refurbishments in order to meet its tourism potential. The main differences are that there are many new amenities will be built such as a new pier, a reception house, a new restaurant and housing.

Looking into the maps in more detail, we can see that there is a new pier will be constructed to welcome the visitors as they come to island from the boats. In addition, a new reception house is located in the middle of the island within a ring vehicle track, together the vehicle track will also run from the pier in the south through the reception area to go to the restaurant which is situated in the south of island.

As well as the changes mentioned above, a further development includes the installation of the accommodation toward on the both of west and east side of the reception house for the tourists staying on island. Finally, the accommodation is connected to each other and to reception area by foot path and foot path also leads the visitors to the beach on the west where they can swim after being renovated

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The changes have already taken place. Therefore, you should not be using present tense in this essay. The changes are not currently happening. It has already happened. The past tense is the best form of time reference for your presentation. Your essay lacks a description of the original island map. Without it, the changes you have presented do not make too much sense. You needed to explain what the island looked like before so that you could make proper comparisons where relevant while discussing the changes that were implemented. That is why the paragraph comparisons are not accurate enough. You need to present before and after information. For example:

The original island was only composed of Palm trees with an undeveloped beach. The whole island was measured to be 100 meters from the sea on all fronts. Based on this set-up, the island was developed to be more tourist friendly. The island was developed and amenities were provided for guests. Overall, the island underwent significant changes after the renovation was completed.

I am really into your comments. It is so good for me to realize the problems in my essay.

Grammar issues:

... new amenities that will be ... new restaurant, and housing.

... is a new pier that will be... come to the island ...

You made this mistake twice. Remember one sentence only has one verb.