As you know this is Casa Milá aka La Pedrera by Antoni Gaudi.
I can't say much but I recommend you visit previous posts about the art nouveau building at Passeig de Gracia.
I have tried different angles of the house but this one taken at sunset looked fine enough. Nevertheless I have polarized the façade and added some dramatic sky just out of pure boredom.
I think it is a building that works when it comes to tweaking reality. Here are some other shots from my archives: Casa Mila, Door Ironwork, La Pedrera in BW and La Pedrera a Barcelona Landmark.