Olemius Jumayle is his name. It means "Nature God" in Estonian.
BUT, I will call him Sammel, "Moss" in Estonian, which ishis strongest element.
He can control nature (Elements)
He has Peacock feathers behind his ears (Feathers)
He is blue (Blue)
He has green moss covering his back and green patterns on his body (Green)
His patterns are neon green (Neon)
He is suppsed to have giant white feathered wings but I did not put them in this picture (Wings)
So I have everything on your list! ^^