Gnomon Masters Tutorial ZBrush for environments

Here are a few quick renders from what I created while following the Gnomon Zbrush for environments tutorial.  Zbrush is such an amazing program and so fun to use.  I look forward to using it more and more and to getting better at it.  I know the renders could use some depth etc...  But I am moving on to a project of my own and will render that one much better.  Let me know what you think.