Hmm.. don't know how to write revision that won't be much different from earlier posts.
The reason I've put around 75% of story in query is cause before that Doras is complaining and crying. It's only after he shoots the ice beam does he gain confidence and do "stuff".
Till 75%, it's other characters and Planet Guardians who fight. The book has 11 povs. But only Doras is major character as he is throughout the book.
I believe that you can build on that then. Mention the importance of holding his position, Jupiter challenging him to prove his worth. Then mention how broken he feels cause he fails. Lastly mention that he only gains the confidence he needed after freezing his friend and only ally.
Finish with him trying to believe in his power and the need to gather more allies or the whole universe will fall into Jupiter's hands.