okay you try doing this at on the computer half asleep and i know they are a sphere i ain't stupid! i did this with mouse its not gonna be perfect jeez!
Some of them are okay. But remember, a Pokeball should be a sphere i.e. round! Some of these are definitely oval.
Maybe start by drawing the perfect Pokeball, nice and round with the opening in the centre, then clone it as many times as you need to draw each of the others?