By fixing a problem you actually created another one haha, at least it's something easy that if you remember will help you a lot in your work! Essentially, you want to avoid perfectly straight horizontal or vertical lines (like his knife right now) in your designs if you want them to look dynamic. It can work in a situation where you want to show stability and balance, say a knight holding a big sword in front of him. But in this situation where you're going for a very dynamic action pose, it looks off.
Other than that you've really made a great job rendering it, I can see you've improved a lot over the course of only this project! The blue smoke effect and the lighting look great, hopefully you can finish it in time!
