I just recently became obsessed with altered melee maps and as of now, Beyond The Throne is my favorite altered melee.
I got into Beyond The Throne when my friend persuaded me to play a "really cool altered melee with three races". I played my first game of BtT as the Seed (duh) and was amazed by the uniqueness of the race. However, I was destroyed pretty easily since I made lots of Beasts and my friend's hero killed them all and got very strong. I played a few more games with him, but I didn't understand the race and got destroyed every time. (I did not want to play the Orcs or Humans, mostly because the Seed was so epic to play as.) I got frustrated after I failed to beat my friend (and the AI). So I gave up trying to win, and stopped playing Beyond The Throne for awhile (maybe a year or so). Then my friend told me to play Beyond The Throne again and I decided to try it (again). This time, the map was Paradise Shoals and I was human. The game (not the map) wasn't that good, because my friend apparently was having horrible lag problems and had to leave (or maybe that was an excuse to leave after I killed his army?) However, I was really impressed (again) by the uniqueness of all the Human's abilities and structures and stuff. So I decided to try it again in singleplayer (where my opponents would not leave) and fell in love with the map.
It's amazingly polished and I love all the custom models. The spells are really unique, especially the hero spells. I really like how you implemented navy and the terrain is really well made. It looks nice and it works well in combat. The Lost is a really awesome and unique race, but they seem to get too much gold lategame if they get more than two mines (which is pretty easy to do since corrupting a gold mine isn't that expensive and food is not required to harvest gold, because the Lost don't need workers to harvest.) Are they supposed to create masses of Shamblers augmented by a few other units? Also, Terminus Cruxs aren't repairable by Fulgors or Shadows, a Monolith is required to heal them. Is this intentional? I also noticed that Essence has a [Level 1] attached to it, does it have different levels? The Lost's workers also seem very vulnerable to air attacks, and if the Lost loses a lot of its workers, it becomes very weak. I think the Void Aid should be unsummonable or self-destructable, since it loses its use after the items are bought. I don't see too much of a use for the Adjutant, mostly because it doesn't have any way to directly deal damage to enemies. The Humans and Orcs are really well made and I don't think I can say anything bad about them. They seem quite balanced but are pretty different from one another, which is a cool thing. Lastly, I think that the Relic is a really cool neutral building.
The dedication you put into this is really astounding, and I'm commend you for making these maps.
(Also, I know that you removed the Seed, but I liked playing around with them in singleplayer and am curious to know whether you have any more maps than the one I played with my friend. It was a 9 player circular map.)