The folks from Bigger Picture made a video presenting 7 elements of visual facilitation.
If you’re more into reading, try Agerbeck’s book The Graphic Facilitators’ Guide, where she presents, among other things, the essential 8 elements of drawing as a graphic facilitator.
This is also a nice video presenting 8 different elements to get started with visual facilitation.
I guess it doesn’t really matter how many elements you count. It’s not about the element either way, it’s about the bigger picture and your style :)