I really like this. The concept is a very peaceful landscape. I would say I think a few more details would really make this pop. A few more light tones and a few more shaded tones would give it some depth. I think even just deciding where the light is coming from, which direction I mean and adding some shading on the dark side of the object and light on the light side (such as the house) would make this great painting even better!
I'm not very good at critiquing so I'm sorry if this doesn't come out right
