Well done. Describe the impact of this move in comparison with a smaller fireball.
Alright, I usually teach people this sometime in the training but since you brought it up, I'll emphasize more on handseals.
-Hand seals usually signify how much chakra you need to use in the technique. Higher level jutsus have more hand seals and each of them utilizes your chakra in the way your hand seal specifies. If you have good mastery over the jutsu, then for example, while Chidori needs four hands seal, you only need to use one (Ox) in order to use it.
-More hand seals mean a longer duration to activate your jutsu. For example, if you have a jutsu that requires two handseals, but your opponent has a jutsu that requires five, your jutsu should be before his. You can pay attention to such details in teamfights.