There's something about scales; the shrub look like trees, but small, and the cows look giant in comparison to the 'trees', but then there are the bridges, and is it a river or a tiny stream.... difficult combination. What if you increase size of the shrub/trees say 4x, you see the actual width of the 'river' decreases to a real stream. Add some more trees/shrub, and what Ra says, clump the cows. Then see what happens...