Completely understandable and in that case, You are completely correct. You should paint that Visual for them. Totally feel like I'm telling You things You've already figured out now. :-) See? You're a natural.
A page from 'writing for Visual Media' showing an example of writing the visual: http://books.google.com/books?id=MwtjdtT0fJkC&lpg=PA12&ots=A927r4eOnQ&dq=describing%20visuals%20in%20a%20screenplay&pg=PA14#v=onepage&q&f=false
no subject
Date: 2010-10-30 11:48 pm (UTC)A page from 'writing for Visual Media' showing an example of writing the visual: http://books.google.com/books?id=MwtjdtT0fJkC&lpg=PA12&ots=A927r4eOnQ&dq=describing%20visuals%20in%20a%20screenplay&pg=PA14#v=onepage&q&f=false
Says it better than I can.
Good luck. I'll hush now.