Book Concept, original or not?

I'm trying to write a book, since you write on what you know about, and since fantasy epics (like Beowulf, and the Illiad) and such have always interested me i've decided to write a fantasy novel. Taking some inspiration from my favourite author, J.R.R Tolkien, i'm making the world, constructing languages, and building a history before writing my story, and I need to know if this is an original concept for a book, and if it doesn't seem too much like the works of Tolkien, or Lewis, or Brooks, or Jordan. So, without further ado, the concept.

In the beginning, there was a nothing, and out of this nothing, this Chaos, two supreme gods were born, Fielden, Lord of Light and God of Creation, and Eraz, Lord of Darkness and God of Destruction. They were like Ying and Yang, Light and Dark, Day and Night. Neither Fielden nor Eraz were evil nor good, they were simply there. When something Fielden created had expired it's use and purpose, Eraz was the one who removed it from the circles of the world, and placed it with loving hands in Falandar, or Heaven. And together the brothers, Fielden and Eraz created the Gods and the Gods, led by Falaen, God of Life, they created a marvelous world, and all that inhabited it. First there were the Gnomes, the most treasured of all the gods, fair, homely, skilled in smithing, sorcery and all they put their minds too, the Gnomes were almost a master race, as all the love the Gods could have was poured into the Gnomes, as they were there first creation. Then came the Sea-Elves, children of Wanden, God of the Mountains, and Bealan, Goddess of Water. The Sea-Elves were tall and fair, looking much like men, if it were not for their long thin fingers, and there haunting, pale blue eyes. The Sea-Elves loved the oceans, and ships, and a fair wind to blow them to the ends of the earth on their fleet ships, but also they loved hard rock, and sturdy ground, and metal and jewels. The Elves respected forests and trees, but were not above cutting down the trees in great amount to build their great fleets. On the other side of the world, a branch of the Gnomes settled in a mountain range, becoming taller, dumber, and more muscular. Dwarves they were called, and they loved metal and smithing more than Elves or Gnomes, though they were not as skilled as the other races. And finally, the young ones came into the world. From where? No one knows. But one day out of the far reaches of the north, came a great exodus of a new race, looking like elves, but with their eyes were different, strong, but not as strong as Dwarves, clever, but not like the Gnomes and industrious. Men had come into the world. Men were soon split in a schism that is today known as the Sundering of Men. Two distinct groups formed, in the North, men settled into a loose group of city-states, constantly fighting and waging war on each other, and staying weak because of it. But the other men, who continued there journey south, they became mingled with Elves, and settled into two great countries, the Kingdom of Thessalon, a feudal state were people desired peace above all else, though the Thessalonians were great warriors, and the Empire of Arneas, ruled by a just and righteous King-Emperor. Thus the creation of the world was done, and the Gods rested on their floating island of Falaen where they watched the world. But Chaos had one more creation to unleash. Lokanar, the Demon-king, came out of Chaos and descended into the World. He came down in the south, where the Gnomes had settled, they revered him as a God, and slowly, over thousands of years, his evil consumed them. The once mighty and just Gnome race became ugly, twisted, vicious and evil. The Elves cursed the Gnomes and called them "Goblins" after an old bogeyman that Elvish mothers used to scare their children off to bed. But the one thing that the Goblins retained of their former glory was their eyes, they still had Eyes like Gnomes, and in every Goblin's eyes is a profound sadness, a sadness that they went down the sorry path of Lokanar, the Demon-king. The Gnomelands became a wretched place of dust and rock, and the Gnomes slow corruption over thousands of years was complete. Lokanar struck out at the world, with a huge army of spirits, demons, goblins and assorted evil creatures from the deep, dark places of the world. But he had chosen a bad time to wage war, it was a Golden Age of the world, and the combined armies of the remaining three races and drove him back and routed his army completely with the strength and glory of the North. Lokanar fled in cowardice, and too cover his retreat, the Demon-King used his godly powers to throw up an imposing mountain range, with only one small pass through, to allow his armies to sortie out against his enemies, if he could ever rebuild his Grand Army. The allied races stopped their advance, resolving to trap Lokanar in his dark lands. The three races built a mighty wall, parrelel to the Lokanar's mountains. It was a marvelous construct, higher, thicker and stronger than any wall built before or since, and manned by the greatest warriors of men and elves and dwarves. There was only one gate through it, and it was made of strong steel and reinforced with iron. It was a great wall, with strong towers, and high battlements, and platforms with catapults and powerful siege engines. They called it the Imprisoning Wall. Lokanar too built a strong defence in his mountains, he topped them with powerful towers and fortresses, the most powerful of which sat in his pass, to defend against the vengeful North ever attacking again. As the forces of the North watched Lokanar's great series of defences, which would become known as the Dragon's Teeth, under construction they despaired. Fortresses and towers and walls dug into, and on top of a sheer mountain range. What siege could break such defence? But no foes ever came out of the towers and castles upon the mountains, though they ever manned by Lokanar's servants. And so began the long stalemate known as the Millennium of Peace. And at the end of this period is where our story begins.

And that's the concept. Original? good? utterly awful?

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Sounds good, though the LOTR influences are very obvious. Plus, id suggest renaming the Thessalonians, i just think of the ancient Macedonian vassal state when i hear that.

How about Falex then, for a name for that kingdom? No, that makes me think of the falx, an ancient Dacian weapon. Then, how about Falarn for a name?
Please point out LOTR influences so that I may correct them.