Here´s a little personal proyect.
A lego Antman toy, 3D rendered over a photography.
Its a practical exercise from a course from domestika.org, taught by Tecture Artist Xuan Prada
Here the link to the course (in spanish)
https://www.domestika.org/es/courses/130-integracion-de-elementos-3d-mediante-tecnicas-de-vfx