i see Pinkie pie subscribes to Abridged!Piccolo's training method

All I have to say is very interesting story I couldn't stop till I read it all

This story was finished years ago, and perhaps you now recognize these faults in your story, but nonetheless I offer you this criticism, so that perhaps it may be useful to you for future projects.

Well, let me start of with pointing out a mistake you and many other fanfictions revolved around summons did:

You did not involve the summons in the actual combat.

A great portion of the stories revolved around summoning contracts made those summons Naruto's teachers and friends. Not only did they not make them a part of a crative combat dynamic, worst of all, those summons seemed to exist in a storyline apart from the cannon storyline. Authors like you were very lazy in, or had not considered, integrating those summons in Naruto's environment; whether they interact with Naruto's teammates, the Konoha 12, his other teachers or the general people around Naruto.
In your case, you had Naruto summon Dash for a redundant task and then had him dismiss the summon for the actual combat where he'd needed the support. Instead, you had Naruto know Jutsu he doesn't know in canon from who knows where for a very cheap combat experience.
Most authors give Naruto boons and techniques which in themselves are cool and badass, but those authors are not mature enough to understand the principle of having Naruto suffer through a prolonged training period for this one technique that in turn then shines when most necessary to be revealed (Gamabunta Gaara fight, Rasengan Kabuto fight, Rasenshuriken Kakuzu fight). There are reasons why most consider the war arc from Naruto rushed and and not thought through, the neglect of this principle having been one of them.
The way you should have handled it is by having Dash complement Naruto's canon weaknesses and incorporate her strengths from the My Little Pony canon to support him successfully.

awesome story

I am looking forward to Kouma Shokan: Swirling War, Ch: 5 and I hope Naruto gains ability to enter sage mode.

I am looking forward to Kouma Shokan: Swirling War, Ch: 5 and I hope Naruto gets to meet the spirit of Mito Uzumaki Senju.

I am looking forward to Kouma Shokan: Swirling War, Ch: 5 and I hope Naruto gains chakra of Ashura Otsutsuki.

I am looking forward to Kouma Shokan: Swirling War, Ch: 5 and I hope Naruto discovers shrine of the Shinigami.

I am looking forward to Kouma Shokan: Swirling War, Ch: 5 and I hope Naruto has sex with Pinkie Pie.

I am looking forward to Kouma Shokan: Swirling War, Ch: 5 and I hope Naruto offers to help Kyuubi get their revenge on Madsra Uchiha.

I am looking forward to Kouma Shokan: Swirling War, Ch: 5 and I hope Naruto meets the spirit of Mito Uzumaki Senju.

I am looking forward to Kouma Shokan: Swirling War, Ch: 5 and I hope Naruto reaches the level of Haku Yuki Mamochi.

I am looking forward to Kouma Shokan: Swirling War, Ch: 5 and I hope Discord trains Naruto.

I am looking forward to Kouma Shokan: Swirling War, Ch: 5 and I hope Naruto gains Uzumaki dojutsu.

I am looking forward to Kouma Shokan: Swirling War, Ch: 5 and I hope Naruto gains ability to use jutsu of Mito Uzumaki Senju.