Palm tree from alvinylaya is the best palm tree model I've seen in bryce. Matches the standard palm you would find in many a Vue scene. Sadly I can't find a link to the download, but heres an image of his. I could mail you the file if you want it.
http://www.renderocity.com/mod/gallery/index.php?image_id=861272&member

Also I know this may sound odd being as you are working in Bryce but check out the gallery of http://www.renderosity.com/mod/gallery/browse.php?user_id=42108
thomaskrahn
Especially his older works in Vue to give you inspiration for composition and light etc.

http://joevinton.blogspot.com/