I think it might be good to add a category, something like "Art/The Arts"? with subcategories of visual art (painting, manga, photography, sculpture), sewing, writing, music, and cosplay (I separate them b/c a lot more goes into the cosplay than sewing the garment) ?
For this list, off the top of my head I could recommend
Blue Period (teaches about many mediums of art) and
Gaikotsu Shotenin Honda-san (teaches a little about making manga, selling manga, and working in a Japanese bookstore from the perspective of a mangaka working in a Japanese bookstore)