Starting again in the background, I have brightened up the valley a bit, refined the trees on both sides of the wagon, developed the ground with some areas of grass and contrasted the shadow pattern in the dirt area. My idea here is to get the sun shining on the wagon and it's flowers.
So I have added brighter lights to the wagon and flowers, and some cascading white blossoms to the back of the wagon, which will help bring your eye into the rest of the flowers. In composing any painting, it is important for the artist to guide the viewer's eye around the painting so that the viewer will see everything. The artist is like a movie director in that way.
I have also added a little bird on one of the wagon rails to move your eye in that direction.
I'm still bothered by the center wagon wheel staring me in the face, so I will have to come up with a solution. It's distracting as any geometric shape is: a square, a triangle, a circle, and in this case, a perfect oval. Not good. The viewer's eye gets into these shapes and goes round and round and round and can't get out.