I think this map isn’t quite ready for play testing, but it definitely has potential I’d like to see expanded on. The lowered central area that you have to pass through is a neat concept, but there are currently a lot of bypasses to quickly reach the enemy base. Closing off some of these routes (dividing the ramparts + making the ruined stairs inaccessible) would direct players into clearer routes, so the unique dangers of fighting in the central area can be shown.
Some minor ideas: Close off the main castle gate to discourage wandering, with a small one-way path back in for those who fall off the walls. Adding wells/ponds to the central area would give it a splash of extra color and a place for marine mobility/putting out fires. Speaking of color, a little more red/blue splashed around would be nice, and you’ve definitely got a lot of space for banners and flags!
Otherwise, aesthetics are lovely as usual. Looking forward to seeing where you go with this.