(just trying to get a mental image of how gravity works, thanks in advance

)
if gravity is the weak force in nature and is believed to occur through the curvature of space/time. How does the sun which is comparable in scale to a soccer ball hold the earth (the size of a marble) in gravitational orbit at 200 mtrs?
either the scales are wrong, or the indentation type graphic images they use to communicate space/time curvature is misleading.