Articles where the main photo was created by me:

    https://en.wikipedia.org/wiki/Mississippi_River_Delta
    https://en.wikipedia.org/wiki/Bow_drill
    https://en.wikipedia.org/wiki/Gridlock
    https://en.wikipedia.org/wiki/On-screen_display
    https://en.wikipedia.org/wiki/Stall_(fluid_mechanics)#Formal_definition
    https://en.wikipedia.org/wiki/Erotic_electrostimulation
    https://en.wikipedia.org/wiki/Custard
    https://en.wikipedia.org/wiki/Fillet_(mechanics)
    https://en.wikipedia.org/wiki/Fire_door
    https://en.wikipedia.org/wiki/Ice_racing
    https://en.wikipedia.org/wiki/JPEG#Entropy_coding
    https://en.wikipedia.org/wiki/Auto_mechanic

Articles where the main photo was found by me:

    https://en.wikipedia.org/wiki/Crankshaft
    https://en.wikipedia.org/wiki/Center_console_(automobile)
    https://en.wikipedia.org/wiki/Food_coloring
    https://en.wikipedia.org/wiki/Baker             (2nd picture)
    https://en.wikipedia.org/wiki/Reaction_control_system
    https://en.wikipedia.org/wiki/Aileron           (2nd picture)
    https://en.wikipedia.org/wiki/Satellite_constellation
    https://en.wikipedia.org/wiki/Chart_recorder
    https://en.wikipedia.org/wiki/M829
    https://en.wikipedia.org/wiki/AeroVironment_RQ-11_Raven
    https://en.wikipedia.org/wiki/Taps