Well welcome in the youtube world. It's obvious that being this your first video there are lots of things you need to improve, especially for the audio. I'm guessing you are speaking close to your mic because I could hear your nose-breathing so maybe you should stay a little bit far from it. The video is ok, maybe it's only because I'm not so much in this type of videos but I didn't find it so interesting (maybe you just need to find your niche). Of course the channel layout must change, you need the advanced layout where you have an homepage with all the sections (videos, uploads, playlist, about...). Nice banner and logo so keep going bro!