I have done 3D modeling for the creation of a HDRI of the New Mirandilla Stadium, for this model made in Blender was necessary to perform some fun techniques:

To get reference resources I used many images, but I also used with the help of google map 3D and blender a way to translate the model from the google map to blender, this allowed me to better examine the environment.

Having this reference I proceeded to model all the pieces inside the stadium, for the seats I used a chain of nodes that generates instance on points.

This model was rendered with Cycles Render in Blender and finally exported in HDRI.