I don't see an issue with what the OP is proposing, sounds like relatively typical content creation covered under Daybreak Games' Terms of Service: https://www.daybreakgames.com/terms-of-service
This is a particularly relevant part:
USER GENERATED CONTENT
Daybreak encourages end users to increase their engagement with the Daybreak Games and share their gaming experiences by creating game-related videos, fan fiction and artwork, Fan Sites (as hereinafter defined) and Apps (as hereinafter defined) for others to view, use and enjoy (collectively, “User Generated Content” or “UGC”). Your creation and use of UGC must comply with the following guidelines. For purposes of clarity, UGC does not include any virtual items that you create for use within any Daybreak Game(s). Virtual items submitted to Daybreak through the Player Studio program are not governed by this Section 14. Rather, they are governed by Section 15 of these Terms of Service.
14.1. Videos. Daybreak encourages end users to create videos for their favorite Daybreak Games and share them with others through Fan Sites and video sharing sites like Twitch and YouTube. Videos can include Daybreak game content such as screenshots and game play footage, and can be edited anyway you like as long as you comply with the Daybreak Terms of Service. Videos that contain our game content only may be used for non-commercial purposes and may not be licensed or sold. Subject to your compliance with the Daybreak Terms of Service, you may monetize your videos through “partner programs” on sites like Twitch and YouTube.
14.2. Fan Fiction and Artwork. We enjoy the creativity of our end users and encourage them to create fan fiction and artwork such as short stories and drawings that are based on and/or inspired by Daybreak Game Assets like NPCs, deities, monsters, characters, cities, dungeons, etc. Fan fiction and artwork that contains or is based on Daybreak Game Assets only may be used for non-commercial purposes and may not be licensed or sold. We encourage end users to share fan fiction and artwork through Fan Sites, social media, and game forums.