Well, I do not think a channel of your sort will need a too specific schedule, however, I think you should try uploading 1-2 videos a week

Also, I think your channel art is sort of empty? I would change that a little too ^^ (I do like the part of the art, where stuff is actually going on)
Other than that; You got some fine (and mostly readable) thumbnails and video introductions (and videos, for that matter)
Ways to expand: Channel art (as said before), make playlists (Example: I like drawing, so if I stumbled across your channel I would watch your drawing videos, however, I do not want to search through all of your videos!).. Maybe change up the thumbnails a little?
(You are now thinking: Whaaat? Didn't you just say my thumbnails where fine!?)
You fill up a lot of the thumbnails (which is fine; You are pretty and it sells), but on
some of them the text and drawings becomes squeezed into a corner because of that = not great
Buuuut all in all, cool channel ^^