Channel Name: "Boss Engineer" - I like it!
Thumbnails: Not terrible, but some of the text is hard to read. There didn't seem to be any consistency. There's no way of knowing they're all from the same channel. The thumbnail I liked best from the front page was "Update Time! (How To Grow Your Channel With Me)" It was clean and simple, but the text was too close to the left edge and the face.
Banner: I like the picture in the top left, but the picture in the middle is boring. (Sorry.) I also think the text should be easier to read.