More digital experimenting

I really liked the way my sky came out at tate modern, (post on this blog:  http://www.blogger.com/blogger.g?blogID=5666531142704615592#editor/target=post;postID=46638880365825247)   so I thought I would try another one - sky landscape - from imagination -ie no photo reference.  Much harder.  Trying to capture layers of sky and atmosphere.  Won't finish this one, but will keep trying.  If I get it right, I will try with watercolour or other media.