JamMeister...Bryce and Terragen are much like Photoshop filters....they all do 'fun' things, but are only as good as the talent/vision/creativity of their users.
Unfortunately, all of these 'can' appear to create 'artworks', but, in fact, are often as 'creative' as colouring by numbers.
Most people don't want to see "hey, look what [proggy 'X'] done!"...they want to see "hey, look what [person 'x'] did".
There is a distinct difference.
Being suitably adept at keeping the colour inside the outline shows deftness, but not creativity.
This does not mean that all Bryce is bad, just that bad artists use Bryce badly.
There are quite a few who DO use Bryce, and other similar proggies really, really WELL, and their work is accepted without question.
I've seen fine sculpture created with a chainsaw, where others just manage to chop off a leg.
Any tool needs mastery....