I love the contrast in colors between the sky and the ground. Leaves no room for mistake as to where to go for the subject. Great shadow of the tree.
Great shot!
I like your selection of subject tree, some entries are very uninteresting trees. I would have preferred a stronger use of the 'rule of 3rds' and your light is a little off, ie flat. I can see the trees shadow is long, so you were very close to the right time for perfect light. On a personal note I would have also liked a bit more saturation in the sky and grass, gold and blue would have worked very well. Good luck with your entry 6.