Looking for examples of 3d assets to study, Blender, Unity

Looking for examples of 3d assets to study, Blender, Unity

I'm at intermediate skill with blender and gimp. I'm interested in modeling for something like the unity engine. Does anyone know of a free set of art assets that work in unity, characters buildings, barrels etc that are worthy of study by someone who is new to creating models for game engines? A matched set created by the same author or team would be nice.

I plan on creating some free assets, probably some sets in the future.

If this is the wrong forum can you point me to the right one?