Poor guy! What on earth happened?
This is looking great already so I can't wait to see more. Watch the anatomy on his remaining arm and hand though. Plus I think his chest and belly could do with being lowered a little bit, perhaps with an overhang. That would look good!
One thing that really stands out, even at this stage is the lighting. It may be just a WIP but I can see that you have a natural skill with this. Keep it going Venay!