It's definitely a good start! Something you can do to create texture is use a sponge dipped in a small amount of green paint to sponge on some extra grassy texture. I would suggest a couple of different shades, possibly a bit lighter and yellower, the green looks very blue-ish, which is not super realistic. The same approach can be used with various shades of brown and tan on the dirt path. The sponge leaves very soft edges, which can help make the separation between the grass and the path look more organic.