I hardly hear it mentioned, but PLEASE
Frame your photos properly
"Landscape" for most bike shots, and try not to crop off the edges of the tires or the tail light.
"Portrait" for vertical views like front and/or rear shots of bikes.
TRY to take photos in front of a plain background, or at least not one with garbage bins, garden hoses and/or decrepit bicycles and old shoes
Move in (or zoom in) to reduce the amount of excess foreground, background, and sky/trees/buildings, etc
Download photos to a laptop and rotate, trim, crop as needed, then resize to approx 1000 pixels wide, or 800 pixels tall. Any bigger than that is pretty much a waste except for final / "keeper" beauty shots.
Thanx!