A few nice culture images I found:
Mycobacterium tuberculosis culture
Image by Microbe World
This is a close-up of a Mycobacterium tuberculosis culture revealing this organism’s colonial morphology.
Note the colorless rough surface, which are typical morphologic characteristics seen in Mycobacterium tuberculosis colonial growth. Macroscopic examination of colonial growth patterns is still one of the ways microorganisms are often identified.
Content & Photo credit: Dr. George Kubica, CDC
Culture en tube
Image by eplea66
Atelier de culture in-vitro de l’EPLEA Perpignan Roussillon, sur le site de Rivesaltes