Eyelead gel stick sensor cleaning (before and after shots). Both images taken with Nikon 50mm 1.8G lens at infinity focus, f16.  Both images received additional contrast to make the spots on the sensor stand out.

Original Dust Reference shot (shutter release #636) (uncropped - full image)

Shutter release # 3491 after gel stick cleaning (about 14 months after original dust reference shot).  Uncropped full image.

100% crop from Shutter release #3491 (roughly center of the image/sensor)