Can you guess what is the object in the photos? Well from the last image, is quite easy. It is a grapefruit. Notice that the images in black and white emphasize the abstract features of these macros.
¿Adivinan cuál es el objeto fotografiado? Al ver la tercera imagen, claramente que aciertan es un pomelo (también llamado toronja o “grape-fruit” dependiendo de la región). Las imágenes en blanco y negro obviamente enfatizan el carácter abstractos de estos macros.
These photos were taken this morning, before my breakfast. This grapefruit formed part of it. I used the camera of my Samsung Galaxy S22 Ultra, as you can see it allows to take photos from very short distance of the object. We can say that it has good macro capabilities, considering it is the camera of a cell phone. The edition was done in Gimp.
With these images I am taking part in the photo contest Travel Contest #184 organized by 
Con estas imágenes estoy participando en el concurso fotográfico Travel Contest #184 organizado por
@nenio