Great style, and the level of detail is amazing. I still think the lip sync could use some work, the mouth animations don't seem detailed enough. This really made me smile though, it felt like a modern day american yu yu hakusho especially during the opening. I could really see this becoming a series if you decide to do more with it. One last critique, the supporting characters seemed a bit off from the way they were shown in the opening, it just gave me different expectations, I thought it would be more on the smart supernatural side and less on the fighting side, really nitpicking here but if you do want to continue this, work on those characters.