YA Apocalyptic Fantasy Series Editor

I'm seeking a skilled editor for my YA apocalyptic fantasy, Book 1 of a series (15 chapters, Draft 4). I need developmental feedback, especially on the middle section to strengthen characters' choices and emotions, and a copyedit.

Key Requirements:
- Maintain teen voice and slang authenticity
- Long-term partnership for Book 2

Ideal Skills and Experience:
- Experience in YA and fantasy genres
- Strong developmental and copyediting skills
- Familiarity with teen language and culture
- Detail-oriented with a collaborative approach

Please provide detailed project proposals.