I don't think the map uploaded correctly. I tried to download it from the attachment, and nothing happened. Then I went on to the server to grab it from the attachments directory directly, and it wasn't even there.
I don't know why you always seem to struggle so much with the sun lighting, lol. I can't help you much from the screenshots. You might try using integers, like "30 -23". I also tend to fudge the downward angle a little bit, since the sun is so low in most skies everything ends up being in shadow. So maybe "30 -35" or so. You also need to turn your ambient light way down. I'd try 60.
A couple other things I noticed when I loaded the old map up to look at where the sun was:
- The barrels should be aligned so the circle on the top of the texture matches up closely to the shape of the barrel. Looks like whatever high-res textures you're using are wrong..
- There's a little lip of wall to the right of the barrel pile that I keep hitting when I do the ice jump. A clip brush would be helpful there (on both sides). Also, a clip brush coming down from the sky so you don't hit your head on the arch would be nice, too.