This is a detail of the upper part glass front of the nurses' counter at my cardiologist office. The grain is a mix of the frosted glass and the noise due to high ISO, but I liked it. So much that I actually 'enhanced' it with a slight unsharp mask (only PP it has).
Note: I forgot, yesterday's shot was taken HERE. I had never seen those reflections before.
300 mm (35mm equiv.)