seems a little too tall. I think you could bring the lower menu up right under the dragon. Plus there seems to be a lot of open space on the right.

I would also consider centering your second line of menu items under the first liine, as it looks a little off-balance with "Shaders" out there on its own.

Also, I'm not sure about the "Simply Maya" font. Seems a little hard to read.

Nice use of colors.