I'm pretty sure you are aware, but in the widescreen version the road is cut off at the top of the screen. It's not
really an issue though, since it probably couldn't have been done better if you wanted to keep this rotation. Although, honestly, I think you should've ditched the whole idea of having it rotated, because it always leaves so much of the background sky visible, which I very much dislike. Still, I prefer the POV of the widescreen version because the 4:3 version has such a high view angle that the colors/lighting of the track are weird.
Aside from the POV, it's a nice track. It has quite a unique look to it, mostly due to the unusual color scheme, which I like a lot. The dam looks pretty great, shame that the water system in GR is limited to having it on a fixed level throughout the whole track, it would be even cooler
![Razz :P](./images/smilies/icon_razz.gif)
I like the hmap as well. I think you could've created a fake lmap bridge instead of using a flat bridge but it isn't too big a deal.