It would be really awesome if there was something like this but for arms. I mean, what I've seen doesn't really tell me where all the lumps and bumbs go in particularly the shoulder and forearm-elbow areas. I really struggle with those bits. But I might just be missing something in another of your tutorials?
You can find a simple tutorial on bodies here: [link] I also have a hair tutorial here: [link] I don't draw in Naruto style or anime style really and as an artist of professional experience I suggest that you not either, not right away at least. I stress to learn the ability to draw anatomy realistically first and soon your own style will develop naturally. It's okay to have a preferred style already or perhaps another artist to look up to but developing your own art-style will always outweigh copycat creations. I hope this helps.