Alright
The executions could be a little more original and less anime-esque. The colors were a bit unattractive. Not to mention the whole ninja versus demon concept is a bit outdated. Try to also make the fights more reasonable. Everyone wants to be a bad ass hero. So you should try and stray from the mainstream depiction because it gets old and moldy. It was decent animation, a side complaint was. You had no right to put dust clouds from when people landed or ended up doing a skid over a distance. There is no dirt from what your art illustrates. Maybe a few pieces of concrete, if that's what the fighting area is. Learn to demonstrate and represent more of the scene with your art. Colors and textures can be the very different between a tree or a large brown shit. I give you a seven for decent animation. Keep going and get better.