I tested your map on version 3.52. I didn't find any major flaws, but there are some nuances:
The number of resources of random type is often indicated and does not exceed 2.
There are too many dragons guarding the Azure Dragons.
The map is not for beginners, but for fans of Heroes, as evidenced by its difficult gameplay.
In principle, the map is good. You can post this and other maps using these links (you will also find more than 50 of my maps there):
Best Maps and Campaigns for Heroes 3
Maps, Patches, Objects, Monsters, and Files for Heroes 3: WOG