Alright lets do this.
Detective L vs you I enjoyed the read, I think your first move of an offense was straight forward, jumping and roundhouse kick, just like i did in our fight. I think now that i tried it myself that it is possible not the best way to start a fight since it leaves you suspended in the air, while the opponent seems to have an easy way of countering it so perhaps next time i wont do the same and neither will you XD as for the fight, the way you quickly got the ground using added weight, the way you used partial camouflage combined with the wild lions mane, those two were quite smart moves, difficult to perceive especially the second one i mentioned. The added weight was smart to quickly get to the ground and continue with a swipe. Concealing your hair as it attacks cool! The last move you made Greater Earth Style, seems a bit more "normal" >__> using the same technique twice perhaps you could have used the dome but perhaps used it more to your advantage by going underground or perhaps you could have used one of the toad summonings.
You vs Nagato Tobi vs Jiraiya and there is a bit of background story i love it. Again first move is yours XD and you chose a jumping kick once more, and tobi dodges it pretty easy and delivers a dangerous attack from beneath you. perhaps i was right in my first assesment in the top if your not prepared for it. it has not gone long this fight, but the pressure palm was a quick way to counter his attack, and the last move so far you use speed over everything else to get up behind him and delivering a kick quite strong and smart move by using the barrier dome method, smart.
you vs Serpent a long ass fight >_> anyways overall cool move countering the bird by splattering it beneath gamabunta and his sword XD but how does a giant toad stand on such a head i feel he is bigger but idk xd serpent seemed repetitive about using that Asura Path >_> anyways nice hair combo to knock his missiles and then use quick needle shot to attack him. Toad Oil Flame bomb an easy way of countering several attacks as you shown nice. Sage Mode time! running around with hands bound yay! well golem was something i presume one needed to do since you cant you hand seals during that time. but again seemed like an easy way of countering for you. Sage Mode time, well that was some badassery right there in that move (didnt know you had custom ma and pa >_>) and nice use of dust cloud to conceal yourself while moving in with a tongue binding and quick finish of a punch xd and here comes some customs i never seen before. Using the rasengan and the natural energy against him as he tries to counter it with his absorbtion, cool! and i laughed when you pierced his chest as he basically could either stop his absorbing or let himself be pierced. Well nice way of using it to your advantage. From there on out the fight was basically yours, even though i felt that you could maybe have saved Ma and Pa before that happened but it is the price? Not letting him heal i see? food cart destroyer FTW and finally crushing him with Sage Crushing? nice technique. this was the best fight i feel so far, i liked the read.
anyways overall I learned how you acted as jiraiya, roleplayed, used the description. I feel after these reads that i might be able to roleplay better than before, come up with some more unique and awesome counters. And well what you could do better i said up there I am not really sure how much to say, but i didnt see much flaw >__>
Overall nice.
Now lets address what you said. First of all the starting off with a kick, you say its a mistake i say its bait. If i run and kick them they always think i'm open and they will just kick my ass from the word go. In reality, i'm baiting them into close combat to avoid a volleyball game of throwing nukes back and forwards, its more personal.
Now first battle: I used added weight as i needed to get out of the air true, simple and to the point, it means you just make more use of the jutsu you have rather than one direct route as most do. As for the earth, the dome is only short range, so i'd rather go simplistic with using the same jutsu twice in that way. I just wanted to stick to jiraiya to be honest, using earth. As for using the toad summonings and underground, there is a time and a place and i didn't feel it was time yet. thats building towards epicness
Second battle: A background story makes rp so much more fun you get in the zone, you imagine the terrain more and use it to your own advantage if you can. In this case not so much but other times you will. Once again the kick, but i know it would get me in close, get some tai going and there are so many ways to get out of it, even if someone gets a few punches in on you, you don't lose, you just get hit a few times, so can't go wrong. But look out for that nagashi as always. Barrier dome method, basic jiraiya all round sensing, its good to feel even attacks coming from behind you.
Third battle: Now this was epic storylineness. Serpent was unable to use everything he had previously learnt so he was at a bit of a disadvantage in this battle, even with nagato, but it was still great and a tough match. As you can see i made a mistake, giant toad ona smaller head, i need to pay attention to the terrain more. Running around with hands bound is mostly story rp than actual rules in all honesty but i thought i'd give it a shot to see how hard it is, and its hard. Now for the the main part. I knew that there was a weakness in the absorbtion, it can absorb chakra, not solid objects so i gave him an ultimatum, i thought he would save himeself by pushing me away or his chakra boots, but he wanted to take advantage too. But i had a trick up my sleeve, i prepared for this years ago and hence custom ma and pa. And in dispersing them freeing myself from the rinegan, good times. I could of saved ma and pa but the fight could go on forever that way. You need to keep on your opponent once you have an advantage.
You will notice in all the fights i only used fire, earth, toads, sage, nin and tai. I always stuck to what jiraiya used