Well - the eye doesn't have much to do here .. most of the "interesting" geometry takes place below the water-level .. heh.
But - as minimalistic maps go - this isn't too bad, the layout takes the engines capabilities into account and is halfway decent for some tactical play even, I think.
You've put light-models where you have lights and the textures you did use are quite fitting .. maybe the floor shouldn't use what I bet makkE designates as a wall-texture though?!
Some more detailing wouldn't hurt, but I doubt you'll be wanting to spend very much more time with this map.
Hoping to see something more elaborate coming from you!