Absolutely jonas mac. I have found using the forums are often a better way to solve a problem than using VW Help. My thanks to all contributors.
I have used the Skydome in the aforementioned House Illustration, and it certainy has lightened the whole works, as you'd expect really. Now it looks very flat, with no contrast between each wall, and the shadows have all but disappeared. I think the Skydome has improved most of the colours in the illustration, except for the house itself! I haven't tweaked the Skydome's settings yet, so I hope to achieve a desireable end product with it. Maybe just deleting some of the light sources will improve things?
I like shadows in my illustrations. Don't they have hard edges?
Finally: I've looked at alot of CG work over the last few days, and there is certainly some superb stuff being done. The contract that I want back, however, does not lend itself to be THAT creative. I would love to produce different angles, sharper perspectives, more dramatic lighting effects etc, but this is the standard view they want for all their work, which is probably better for me as I won't have to learn too much too quickly.