To start, I like how your keeping the video as pure as possible, the only problem with that is it may get boring as the video goes on.
Maybe some light/faint non-copyrighted music playing in the background (And something new other than the same music everyone else uses).
But like I said, its good to keep a video as clean as possible, but try to edit a bit?
And the infrequent upload-- its a problem for me too
Seeing your recent uploads, the last video you uploaded was a month ago, and the video before that 4 months ago.
People could forget about your channel and we don't want that now do we?
I know its different for every youtuber, some can constantly upload while some can only upload once every month, just try to push more videos out because 1) Your subs can enjoy more content and 2) Every video you upload is more exposure to the YT community.