Lawrence, try to balance your compositing by cropping the frame to keep the viewer's eye to the areas you desire. Crop the top since you don't really need the
extra info, and on the right side to have the characters take up more of the space. Also, increase the overall contrast, and darken the background to avoid having our interesting traveling and staying back there. Your foreground needs work. It reads way too flat. Remember that the object's surface reacts to the light. The same goes for your character's form. I guessing that the focal point of the piece is the fire in the middle? Make it more appealing and clarify what exactly is in it. Also, get reference for your characters' anatomy! Have a friend pose for you and observe.

-Nino