I love how this is looking so far, although it seems the characters are all competing for space in the image, I agree with alexisarroyon7 in that the thumbs were more dyamic but I really think you could push the composition itself more, or even use a different angle of the character shown against these other foes to make it more "fight scene". As it is the finished sketch you have is a little bland, it's head on and like I said it doesn't have much balance! I look forward to seeing what you produce though