Very clear how the game inspirations appear in the final work. Very dense narrative and story components, does feel somewhat hard to plug into an ongoing campagin, but would work very well if pre-planned as a milestone area for a new campaign. Missing technical work for DCs and encounters (intentional) which feels like more work for the GMs to have to handle in the moment.
Steelblade cup is an interesting "mini-game" or puzzle mid-session that would be a focus of either one session or at least 1 full session on it's own.
Feels like a full world to explore rather than a single session or milestone for a group of players which is exactly what some GMs would be looking for.
Great job overall, good luck!