@KDM
On first impressions the content and direction of your channel is unclear. Are you a vlog channel? A critique channel? Comedy? Rants? There's nothing branding wise that indicates what it is you're trying to accomplish. Your avatar, channel header and thumbnails, while consistent in their own way, don't match with each other and more to the point, tells viewers nothing about the content on your channel.
What you need to do is think of a single sentence that best describes your channel; a mission statement. When I say to you "What's your channel about?", before I finish speaking you should already have in your mind that one sentence. I'll use my channel as an example in this instance. If you were to ask me "What is the Mind of Klink?" I'll immediately reply with "It's a 'Creators First' network!" Through continued conversation I can go into greater detail but the central, defining, underlying mission statement of my channel is summed up in 5 words (6 if you don't count the contraction). Everything about my brand reflects that idea - the simple logo and colour scheme that shouldn't really be taken any notice of, the individual brandings per creator/show, the unique theme songs per show etc. Once you think of your mission statement your overall visual branding will be much easier to conceptualise.
Content wise your audio quality is inconsistent. The quality of your audio has definitely improved over the course of your videos but the mixing needs a lot of work. In your 'Help the animals, don't drink milk!' video, your audio starts off okay, cuts to a different video and when it cuts back to your commentary, the audio is increased significantly to the point where it's distorted. Make sure your audio mixing is levelled out and uniform so that it doesn't peak (go into the red). If you haven't already, also consider saving up and investing in a pop filter for your microphone to knock out those plosives.
Once more, work out your mission statement; work out what it is you'd like to do with your channel. When you have that, everything else will eventually fall into place.
@Christoverse
I read that as autism for a second there. XD Either way, potentially true on both fronts and thank you for your kind words.
You've definitely got some production values. I'm impressed! Your overall branding is well done and your thumbnails, while changing drastically between playthroughs and series, remains consistent with their own unique design elements. No critisisms here; well done!
Audio quality for the most part is pretty damn good, although there are points in your videos where you raise your voice/yell which isn't accounted for which is causing a lot of peaking and distortion. In the 'Language Challenge' and 'Whisper Challenge' videos you're using the on camera mic which is picking up a lot of background noise (sounds like an air conditioner).
For videos with multiple people, definitely consider investing in a shotgun microphone for each person (or one with a boom pole if you have a crew with you) or lavalier/lapel mics. It'll help clean up the audio while knocking down the background noise. Once final point on those videos - definitely invest in a decent lighting set up to help you camera get nice clean shots. At the moment, the ISO is set quite high to compensate which is causing a lot of visual noise to appear in your videos.
Editing is a bit hit or miss in some of your videos. Your gameplay stuff is on point but your on camera works like the '7 Second Challenge' video have a lot of jump cuts which is distracting. Do a few test edits with as little cuts as possible to see how it looks to you. It could very well be a lot more entertaining by keeping all the bloopers there.
Overall I'm impressed with your channel. You've set the bar pretty high for yourself with your earlier videos and you're still showing massive improvements over time. For just under a years worth of work you should be proud at what you've accomplished. Excellent work and best of luck to the future of your channel.