Bahaha. :p
No worries!! We love all sorts of questions.

For us, Lionzeye (on Gaia) did both the lines and the basic shading of them (so all pets have uniform shading).
The colorists then obvs, color, and sometimes edit, those lines to make finished pets. -nods-

Right now, its been just Whimzica doing all coloring for the shop.. actually for the past year+ I think.