Okay, that's not too bad. But please think of other stuff to add, i mean explain WHY his size can be an advantage or disadvantage, it may seem obvious as to why, but unless you show this knowledge i have to assume you don't actually know.
So with that on to the next and please just add more, everything you can think of. That way i can clear up misconceptions etc.
(Kuchiyose no Jutsu: Gamachu) Summoning Technique: Gamachu
Type: Supplementary
Rank: B-Rank
Range: Short
Chakra: 20
Damage: N/A
Description:
Is the first toad named in the series. Gamachu is a mid-level toad that first appears when Jiraiya is introduced. Gamachu is always seen wearing samurai armor in battle. When he first appeared in the manga, Gamachu seems to strike the same type of pose as Jiraiya, as he would also seem to have become the personal summon of Jiraiya. This toad seems to be the keeper of the Toad Summoning contract scroll and unlike every other toad ever seen, Gamachu has not yet been seen talking, only quaking once or twice and mainly in the anime. In terms of appearance, the kanji on the necklace around his neck means "friendship," perhaps alluding to the fact that Jiraiya summons him in more relaxed situations. Only slightly smaller than a human, Gamachu is a very capable warrior specializing in Kenjutsu and Samurai techniques. He can use both skills up to S-Rank as well as Strong Fist taijutsu (non EIG). Like most toads, he can use Oil techniques.
Note: can only be summoned once