Madrid's strange statues

I've been wondering around Madrid, and I've noticed several really random statues. I've started taking photos of them, so here they are!

The man with the clipboard is called "Homenaje al agente comercial" and is located at the Atocha train station. The man with the broom is in Plaza de Jacinto Benavente. The lady leaning against the wall is called "Homenaje a la antigua Universidad" and is located in calle Pez.