This is the Modular Bait Shop And Grocery Lego MOC created by Versteinert. This whole building is an alternate build for the Old Fishing Store (21310). It uses 1,995 pieces of the original 2033. These type of builds are always really interesting. Being constrained by the parts of another set forces you to get creative. The end building looks like it could be an official Lego set. The Bait Shop and Grocery store are fully detailed inside. The Grocery specializes in seafood, and the Bait Shop is fully stocked for any outdoor outing. The second floor is an apartment with bed, sofa, and even a telescope. Perfect for looking into rear windows. The stairs up from the apartment lead to a neglected attic hiding some forgotten TNT. This is a great modular building, the green planks work well, and the food sign is full of a lot of character.
It you happen to have the Old Fishing Store, and want to transform it into the Bait Shop and Grocery Modular Building the designer has created a set of instructions. They look just like the official manuals, and even cover such topics as what to do with stickers.
You can find information and instructions for this Alternate Old Fishing Store over here: https://rebrickable.com/mocs/MOC-40048/Versteinert/21310-modular-bait-shop-and-grocery/