Here you will find some examples of the different levels of detail in a mural.  In a high detail mural you will see a large variety in tone, line weight, and more components.  In a low detail mural, there may be fewer colors, less variety in tone, and fewer components. Some things are simply more difficult to paint and will bump the artwork up a level, for example; portraits, certain textures, and logos that require an exact replication.

Low Detail Murals

Medium Detail Murals

High Detail Murals