So I'm going to roast you here. Don't take it personally, just listing things on what to improve for your next video!
-Intro was a few seconds too long, try to shorten it to 4-9 seconds instead of 15.
-Voice work needs a bit more energy. I get the feeling as a viewer that you're reading from a script rather than injecting yourself into the review at times. Don't worry, you'll get better at this as time goes on, don't sweat it.
-You meet weird characters but we know nothing about them. Perhaps give them a trait or trope to identify with then move on.
-You get to the end of the game in 4 minutes in the video then move onto bioshock THEN move onto the game-play and mechanics. After cutting to the credits i felt like the video was done and ready to quit. Your pacing format could use improvement.
-When you're going into detail of enemies and their designs, it wouldn't hurt to show still pictures of them close up or art designs (if any could be found)
-Around 9 minutes in when you make noises with the object, it wouldn't hurt to tell your point then go quiet for a moment and boost the game volume to emphasize the sound of the object.
-Half of the time when you're talking theres no game sound or music in the video. This would be prime to add a music track in editing at -25 to -29 for the gain to keep it low enough to keep the viewer engaged.
-I can see towards the end your editing has improved compared to the first half. Keeping your editing consistent is equally important
-16 minutes is fucking long man. Most people usually go for 8-13 minutes as the magic spot for game reviews. You could have cut a lot of stuff out to shorten it up.
Solid video. Keep working on yourself!