* But sometimes the image I have in mind might require a person in it, and let's face it's nearly impossible to model a person in Bryce I don't think I've ever
seen one.

*Maybe not a person per-say.......
How about a dog, or other creatures:

What is really great about Bryce is it's versatility:
It CAN import
it CAN model
it HAS the ability to export layers due to it's mask feature which allows for POSTWORK.
It HAS the ability to generate a DOF mask for precision DOF blurring in a 2D editor

These and many more options allows the artist a lot of lattitude for creating in Bryce, this I why the seperation of pasting 2D images, and pasting "tube" items should be distinguished becuse of it's actual mechanical process and placed in Mixed Medium.
If you want to get really technical and sneak in your Photo-people, create the masked person in the 2D editor, import it into Bryce on a 2D plane with a transparency mask and Render-Away!!
Same process with Tubes.

More to come......

___
Ockham's razor- It's that simple

Forum: Bryce

Subject: FYI - Some changes coming in 2009 For Bryce Forum & Gallery