Honestly a Visual Arts category would make a whole lot of sense.  Youtube is a huge hub of traffic for art seekers of various types.  If "Visual Arts" is too specialized of a category then at least an "Art" category with subcategories should be considered.  Ideally, I'd like to see a revamping of Youtube's categorization system.  It does not do the site justice considering how many people use it and how much valuable information it contains.