StarrySkies 
It’s a good start so far, the models are alright but it’s lacking shadow, light, and a field of depth, because of this everything feels flat or the characters were just a flat image copy and pasted on a picture, working on a Normals and Specular map for the models would be great as well. When it comes to the backgroud, you’ll want flora for the grass, not even freshly mowed grass is perfectly flat!