Plaza de la Constitución de Cádiz 1812 "La Pepa"

rotonda

This road might not be accurate anymore, by looking at Bing and Mapbox satellite imagery, which differ from Surrey Air Survey

Check this building.
Surrey Air Survey show a building that is roughly similar to the drawn one, but Bing and Mapbox imagery show a bigger complex.

number 42 here. The residential "area" ends in number 36 by the park.

Depósito de agua

one way. cannot enter through here

Ya no se llama así.

Se llama "Calle de los Hermanos de (...)" pero no recuerdo el nombre de la chica.

U turn here should not be allowed

Connect the pedestrian ways to the street so pedestrian routes can exit te Piazza through the south.
Alternatively (or maybe best) mark the Piazza as a pedestrian area, except the green areas.