[Review Video] Overall on my first video

Hello and I would like a review on my first video: https://www.youtube.com/watch?v=RSECIQrVnRA

My weakness of this video is the quality of it, although it may be 720p but sometimes I looked at it as its lower than 720p. Assuming my bitrate was low. Now another weaknesses is my commentary, as sometimes I talked about one thing and then distraction came in and that's when I start loosing concentration on what I was talking about. You'll see it in https://youtu.be/RSECIQrVnRA?t=1m20s all way to https://youtu.be/RSECIQrVnRA?t=1m31s as I gotten distracted by that guy. Hope I could get advice on these two weaknesses that I have.

https://www.reddit.com/r/youtubers/comments/3kps7s/review_video_my_first_video/ https://www.reddit.com/r/youtubers/comments/3kp2gy/review_video_gameplay_compiled_video_how_can_i/