Very, very nice imagery. It should be the picture in the dictionary next to Negative Space.
I agree with Timothy below, the negative space is rightfully there not forced to meet the challenge.
Congrats on the red, Wendy. Very nice arrangement of trees. When I saw this I thought I knew where it was. I was right about it being Victoria but wrong about the actual location. There is a view very similar to this near Dean (between Ballarat and Daylesford.)
Title gives good context to this. Borders on a 'Minimalism' type image that are quite prevelant for entries in this challenge, but the treeline and shape sets this apart. Well done!