For me, the most impressive part of these pictures is the use of lighting. The play of lights and shadows reproduces the volumes in such a way that one feels immersed, embedded in a vast chamber that is in reality only a few centimeters wide. The cello example is exceptional in that regard.

Edit: it's a cello [1]

[1] https://www.architectureinmusic.com/products/lockey-hill-cel...