Well, it is a nice map, but I feel that it is too vibrant, and everything is too spread out. Apart from that, I can see what you were going for, and it looks very nice for an old map. The walls aren’t even, which gives it more variety, there is more variety in the types on trees, and the castle is very nice. Great job!
I do think the walls are tool box models because I have used the same exact wall type in my old games I would recomend to make it yourself (in blender or somewhere) to avoid the game making you teleport to other games when you spawn in yours, That’s has happend to me when I used free models. But overall it looks amazing, good job!