Okay i\'ve been doing youtube videos for a few years now, before even watching something immediately jumps at me, you need a better microphone. seriously, sound quality is EVERYTHING its almost always the first thing that people judge your videos on, and quite frankly yours is terrible.
If your budget is relatively small go with something cheap from Logitech practically anything of theirs works wonders, make sure its an actual desktop microphone ( the kind that sits on your desk)
If your budget is fairly high, spring for a real microphone or this bad boy
http://gaming.logitech.com/en-us/product/g930-7-1-wireless-gaming-headset
I use this headset for practically everything i do short of multi-person recordings it is utterly fantastic, and it\'s wireless, this is a great bonus if you have random animals like i do that like to snag cables, and the best part is unlike other wireless headsets it can be charged WHILE your using it, it also has 3 keys on the side that can be configured to do basically anything. It\'s noise cacellation is fantastic, and its weight is just right for anyone who can hold more than 2 ounces on their heads. some people have complained it\'s heavy but i think their just wimps because it is glorious, seriously i can\'t sing this headset enough praise.
Thats pretty much everything i have to say on audio, i\'ll post again after i actually watch your video and let you know what i think.
Oh did i mention that, that headset is also 7.1 surround sound? no? well it is.
Edit: Right well another thing to keep in mind is to seal yourself off from all communications of any form except the most important, this means turning steam to offline mode, skype off, phone on vibrate or silent ( if your expecting a call don\'t start recording at all) and then turn off any and all instant messengers. I say this because i noticed within minutes of your video starting a steam notification popping up.
Also i\'d like to know what program your using for recording, unless it is something that relies on you being windowed, don\'t play in windowed mode it lowers the quality of most recordings,
Other than those 3 things i don\'t see any major issues. The biggest of which is certainly your audio, the other 2 are bottom of the barrel type issues that any start-up channel experiences.
Edit 2: some advice for the future as well, if you end up building a large ship either cut bits of it out or speed up the footage and either add music or voice over you building. If you go the music route make sure its copyright free, public usage stuff or. well ... issues happen and even just a few copyright strikes can completely ruin a channel\'s future ability to for partnership or worse, whoever owns the copyright puts ad\'s on your videos then takes the money.
Edit 3: just thought of something moderately important, if you go to a retail store to get a microphone make absolutely sure you can return something if it\'s been opened for full price because sadly the only way to know for sure if a new microphone is better than your old one is to try it, or already own it. Also be very gentle when opening a new microphone because a company would love to have an excuse to keep your money.
