You said before that you weren't sure what to add for details.  This happens to me a lot and I find the best way is to use reference pictures.  Real pictures or screen shots from video games.  Then you can see whats really in a forest, cave, etc.  I think most would agree that you should always work with references and I think it helps most in those little details that you don't really remember that are there.  Oh and its coming along really really well, the new character looks great.  In fact, I kind of like him with no arms at all, maybe you should keep him like that unless he needs arms in your game.