Hello again, @Hossein530 ! 
Thank you for sharing your Shopping Alley with us! This project is as structured as your horse stable alley. Is this for a class? If so, what are you studying? If not, I really like how you challenge yourself by deciding on a development aspect to focus on, and then creating a project out of that challenge.
I followed the link to your ArtStation, and it amazed me that you’ve combined so few assets in such a way to create a complete alley. Color me impressed!
What inspired you to become a 3D Environment Artist?