I don't have time to read all the answers, but I want to tell you that your colors are great, your design elements are good.... My only criticism might be that the rocks to the right of the house are too big and too dominant. They take away from the house.
Try laying brown paper strips (or something) to form a fence and see if you feel it makes a positive difference. They say the eye travels that way into a picture. Maybe that's why people miss it.
I love the snowy mountain; wonderful contrast, and it cuddles the house and the rest of the pictures perfectly. The grass is great, the house darling, the path outstanding.
And you say this is your first!!!! Hey Babe, you got talent! Carry on........
From another "art" quilter, AKA "quilting experimenter".