I'm back ! First of all thanks for all the nice feedback and kind words.
I made some progress with the level design, but it's not done yet. One area is still missing, after that I will do some detailing, place some ivy, and grass around the edges.
Foliage proved to quiet drop the frame rate at certain circumstances.
I don't know if it is a shader issue though.
I have 5 trees at the lions statue area, which had the leaf billboards at the same height.
At first I didn't know what caused the frame rate drop of around 20 fps at a certain spot, standing between the statues and looking towards the gate. I systematically removed objects, until I removed 20k polygons worth of objects and I would still have the same frame rate drop.
Well at the end it turned the billboards are causing the slow downs, I had to alter the height of some trees so some of the billboards would be partly out of the field of view.
Some people complained about the camera and the difficulty to see what's ahead of you. But the previous cam was just temporary anyway, and I have to admit it was anything but sophisticated. It pretty much just followed the character without the ability to change the camera angles.
I think I mentioned that I didn't want to change the distance between camera and character. Practical or not, I prefer it that way.
So while keeping the cam at the same distance, now it's possible to adjust the camera. You can move left and right 360 degrees around the character and move up 20 degrees to give a slight slant. This makes it much easier to see what's ahead of you or around you, I think that should work for every one. Now you move with A,W,S,E and adjust the cam with the arrow keys.
Well anyway, here are the latest shots.
And the new video:
http://www.youtube.com/watch?v=hLLAdNqb2Bc