A bit more detail on the fence posts, taking into account of the light source coming from the left. Up until now there hasn’t been too much necessity to think about the light source and where shadow would be but for the posts, the barn and the tree it’ll be critical.
Another point to note is that I’ve tried to have more contrast for the closer posts than the posts further away. In fact I haven’t used any black at all from the left three backwards.
The further away anything is the more muted the colours and contrasts will be, by trying to replicate that I’m hoping to give a greater sense of depth.
I’ve also smooshed (technical term) the lines of the background of the grass areas as I didn’t want hard lines. Compare the green areas to the left and right hand sides of the fence post 🔍