But I noticed that the direction of the light_environment seems to be out of sync with the direction of the sun in the skybox. The light appears to be coming from the opposite direction from the brightest spot in the sky.
Wow this look awesome, the boxes on the first pic looks a bit weird, if you scaled them down and made them physboxes it would be cool, i love that tower thingy :D.
there seems to be an error on the last pic, the left combine wall model is transparent