You have identified components of your applications. However, I think it would be better to have them in more detail. For instance, for each component, you could explain how the component would interact with other components and the app. What are the requirements for each component and which tools would you use to implement them. Finally, you can explain what is the overall importance of each component to your app. You have some sense of hierarchy for your components. However, I suggest that you create a plan for how you want to prioritize each of these components so that you have a working app.
You have identified components of your applications. However, I think it would be better to have them in more detail. For instance, for each component, you could explain how the component would interact with other components and the app. What are the requirements for each component and which tools would you use to implement them. Finally, you can explain what is the overall importance of each component to your app. You have some sense of hierarchy for your components. However, I suggest that you create a plan for how you want to prioritize each of these components so that you have a working app.