These are lovely photos you took and clearly you are working on composition and lighting. I have always struggled with composition. If you do get to doing a course on photography, you will see the process in a completely different way, it's quite amazing how far photography has come since the old days.
This section of your city is really pretty.
RE: Tarde de fotos entre amigos - Plaza Bolivar | Afternoon of photos among friends - Plaza Bolivar :: Plaza Bolivar