Wow! I didn't even notice this. The best advice I would recommend is to read and watch other reviews. Before I really started trying to review something, which my first one was Lunar 2: Eternal Blue Complete, I read some reviews to see how they did reviews.
Now, obviously each of us has our own way of doing reviews. Most people will divide their sections depending on what they talk about.
For example, you would start with an introduction to the game, maybe lasts for a couple of paragraphs; you then go to talk about graphics, what's good, bad, ugly, alright; how the music/sfx were; mapping; fun, factor; and then end with a conclusion and wrapping up that review.
Some people will have a header to divide each of those sections, but I prefer to just keep the flow and not divide it. I also try to add some humor to it as I do know that reviews can be boring and long to read.