What's the purpose of that entire right and bottom right side? Is it going to lead to treasure in the unfinished room?
Edit: More specifically, I should say, even if this is practically a final endgame map, there are a lot of huge, unwieldy divergences, but also some questionable areas the player would even try to go.
The green path is the most direct one to get to the throne.
Orange is a side path which will take a bit longer, but leads to lots of treasure (red divergences)
Purple is an extremely long path to the treasure via the bottom right, with a good skip-route for fliers, but it doesn't shave much time off simply going green and swapping to orange just before heading to the throne.You'll be heading toward Green anyway, so unless you plan to stick a recruitable in the bottom right or something to draw the player in that direction, there's no reason to risk splitting their forces, or waste time taking the long, windy path.
The top left black area seems entirely pointless. I see zero reason for it to exist or the player to go there.
Overall, this map is extremely huge and I feel like it would take forever to complete, plus it would involve a lot of dead time.
Edit: I feel like chopping the map off along the bottom and editing the water area at the bottom right would make the map more concise and interesting overall.