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You were supposed to describe 2 papers, one of which extended the other. This reads like a description of one paper. What did the first paper do? What was the incremental contribution of the second paper? What is the intuition of how/why it works? I couldn't work out what it does from the description.

If the figure is not yours, it is important to explicitly cite it in the text. It needs to be clear that it is not yours. We should be able to tell without clicking on it.

Thank you for your feedback. I did not get the idea of how to write the article very well and your feedbacks and reading other's articles helped me to get the idea. I made some edits and I hope it answers these questions now.