@michaliszissiou said:
To use it as a texture filter over a nice already render, this I don't understand. Whatever a client says. Give them a vision, don't listen to them. That's why they pay, even they don't realize it. 
michaliszissiou,
I agree to a certain extent.
The real world design build industry has some very real limits to
artistic expression. $$$$! A photo-realistic image is wonderful and compelling, but can also
scare off clients by being too real. They can sometimes come away feeling as if there is no room for
change. The water color filtered or pencil sketch filtered images can create a feeling of a work
in progress with enough reality mixed in to help nail down concepts without limiting creativity.
The added bonus of this approach is that one can do a quick not perfect render, slap some background
and foreground clutter in with pp, and hit it with fotosketcher and have an image that feels architectural,
artistic, & invoice worthy without spending time most clients are unwilling to pay for.
Sorry this is not art, its work & it works. Having said that, I still want to do the nicest work I can do
within the limitations of what I can charge for.
Thanks for the direction and comments here and in the past, I always learn something when you put your two cents in.
James,
Thanks for the link and directing me back to that website. I had forgotten how much info there is there.
p