Thank you for respecting us with such an awesome request. I for one would not consider myself a "talented terragen artist."
I have played with Terragen for it seems like a decade now, and still consider myself quite the novice. Having witnessed what "real" renders involve, this request is quite daunting, not impossible, but most here are are still using a newly enabled, powerful piece of software, -independently determined by our PC setups. Most here are perfectionists, so just posting a series of thrown together images to provide your needs would not be the way we roll. Your request is quite appropriate, but the time restraint and lack of sample images will leave most here disinterested.
Bill - Matrix2003 .