Heyo! I built this “Supermarket” (it’s not) due to the wonders of boredom, and I think it was alright, but I am plain garbage at building. Anyways, please enjoy these pictures, and leave any feedback if you would like!
It’s pretty basic and could look more like a convenience store. The parking lot could use those yellow stop things, and a Y size for the white lines 0.05 so it looks more like paint. You could showcase stuff in the windows. Adding lights on the outside is also a possibility. The parking lot’s size or the store’s size could be equal, and the windows on the front in my opinion look too big. You can also give the store unique style on the outside. You should use reference images so that you have a better understanding of what a store looks like.
In the inside, the shelfs look too industrial and the layout looks like a warehouse or storage room. If you are going for a convenience store, then I recommend remaking the shelfs to look less industrial so that it’s more of a store. The ceiling is a bit bland, although I do not have suggestions to add. You could add a cash register, and maybe a restroom. You can add a door to exit through the back, and a maintenance room. The shelfs do look good, but not for this environment.