The volcano base is surely the best part of this piece, the globe part I'm not so sure. I'm guessing the balloon and the thing that looks like a castle on top of a table (sorry if misinterpreted) were rushed. The cloud at the top doesn't quite read as a cloud, the shading inside doesn't help. Besides from that I really like the storm's face and as I mentioned the volcano base. Keep up the good work.
Well the idea is inspiring and it has a potential. You've done great work wit the bottom part.
Thanks for the criticism. You are right, the globe part has been gravely underdone.