At Calle de Santa Teresa you will find Oliphant, a beautiful multi-brand shop. They have clothes and some decoration, jewellery too, a lot of things are hand made too and are made by Oliphant. A lot of "vintage feeling", pastel colors. A lot of cute things. If you are in the neighborhood and are looking for a cute dress you will definitely find it here. They have also a online shop.
This last photo borrowed from here.