I have been playing around with methods of creating light and shade and I came across this tutorial, which explains how I can create a sky by using the Mental Ray rendering software: http://en.9jcg.com/comm_pages/blog_content-art-109.htm
I have just created this scene of the sun setting by following the tutorial:
I think it is a quick way of creating various sky effects, but the only downside I have found is that rendering takes much longer and it seems that the sky does not show up in the video file, unless you save it as a video sequence in FCheck.
I am also trying to explore ways of playing with the colour of the sky itself to get a more red texture and also methods of including clouds.
Please take a look, and tell me what you think.