NP. Welcome to the Game Development Community. You may want to pickup a book on Game Environments and Props, or a book written for Environmental Artists. I don't have any recommendations, I use a Maya workflow here, but a good book will go over concepts like MipMapping, Tileable Textures, Muilt-UV Channels, Level of Detail, Collision Meshes, and Modular Construction. These concepts will greatly enhance the quality of the game, by reducing rendering costs, enhancing frame rates, while allowing you to unlock your maximum artistic quality.
Best of Luck!
Avotas